Mailcow not receiving email I’ve attempted to diagnose the issue using custom Python scripts to send emails from external sources. I unchecked them and started receiving emails again and looks like the sending of emails still goes through the relay as long as the “sender-dependent transport” is specified. I don't really get many issues with sending email, and receiving emails works quite well. But it also says “postfix-mailcow-1 | May 22 16:17:52 cebdaaff7b0c postfix/smtpd[388]: Anonymous TLS connection established from mail-vi1eur05on20701. Mail-tester. cloud with mail pointed to mail. hs files from /var/lib/rspamd: I provisioned an Ubuntu 24 LTS Instance on DartNode VPS. I opened a ticket on DigitalOcean where I have rented the VPS, they said port 25 is blocked and cannot be opened. I would like to setup a mail server and use catchall address to use for my alias emails. 7. When I try sending an email, it returns with the following message: I saw another post on here that asked if they could telnet the IP that timed out, but the person didn’t respond. The given reason is that the sender in unauthenticated. You will have to use a relay service… Hello, I have a weird issue. The ISP wont open port 25 for me. If you are not looking to send transactional emails, mailcow has your back. 22. in should only be able to send and receive emails from abc. That means that a 30 MB attachment, “inflated” through that encoding will be almost 50MB, then add the mail headers and any inline images of e. In this article, I want to write down my experiences from the first few months of using Mailcow, and finally come to a verdict Apr 2, 2018 · Hey. com receives the mail as if it was user@mydomain. org is only known as me@example. 90. Hi, I hope this message finds you well. MX domain. You might also have an issue with your certs, too. conf except for the http_port and https_port set to 8987 and 8988. I am new to self-hosted email servers. postfix logs are given below… 12/10/2023, 17:02:26 info lost connection after RCPT from servercow. I have tried to send emails using built-in SOGo app and with Apple Mail. org is not a valid Jun 18, 2023 · 2. example. com -all” to this and now all emails are getting to the inbox and not to the spam folder in gmail and outlook. outbound. Now when i connected it to my router and i forwarded port 25, 587. **Problem Description:** After the update, I am unable to send notification emails. The emails doesn’t even get to rspamd, so I think this is not rspamd problem. docs. 2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits) I recently set up Mailcow on my server and I’m having issues with sending and receiving emails. com, I try with another ovh account on gmail and I receive the verification email from ovh. Closed luckysphere opened this issue Oct 12, 2018 · 2 comments Closed Mailcow not receiving mail #1878. domain. mydomain. While I can login to SOGo and view my existing emails i can only send and receive massages for mailcow users so I think it’s still DNS issue There was a problem with the NS records do I’m waiting until propagation is done I installed mailcow with the default mailcow. Haven’t gotten it to work. Apr 8, 2023 · This is the mail system at host mail. com recipients No confirmation for having read the release notes in 2025-05? Everything seems to work fine except email delivery from gmail. mailcow is a mail server suite with tools that help you build a web server, manage your mailbox, and more. Usually I do another docker compose up -d and everything starts working again for another few days. All other sites indicate no problem with my SSL certificates and I can send and receive mail (to non-gmail addresses) also without an issue. If you manage your server yourself, however, you must also be able to install operating system updates and adjust other settings (such as the network configuration) yourself. MAGIC I wanted to send a mail to “gmx. When someone sends an email, in postfix, it is written that the email is recorded and received but then it gets bounced and removed. I don't need to send out email. [domain. xaasio. Jan 19, 2024 · Since I did an update today, while other prividers are working, I can´t receive any mail from my mailcow-dockerized server on gmail anymore. For reliable mail delivery, having an IPv4 address is currently Nov 25, 2022 · I need a little help finishing setup of Mailcow on my Ubuntu VM please. But whenever I try to register at a something online it takes 5-10 minutes before the mail is visible in roundcube. When I send the email from the Mailcow it is received instantly on emails services like GMAIL. Use the protocols mailcow is offering (IMAP, SMTP, API) wherever possible, do not interfere directly with the containers! sogo-mailcow_1 | Mar 9 10:01:04 b058f3079613 sogod [68]: mailcowdockerized_watchdog-mailcow_1. Database tables missing, Rspamd not running properly, config files corrupted. This broke the inbound emails, I assume since it is referring to inbound rather than outbound. I tried registering at Mega. Select the tab that says Blocked Senders to view the list of people that you've blocked in Outlook. mailcow community - official community forum! Following the completion of the work I restored a recent back. DNS and spam related things are ok. it seems your configuration is an issue. net. ) should be completely blocked. google. Initially they were getting to the spam folder and then I changed the spf from “v=spf1 a mx mail. As you can see, my DNS entries are different than what MailCow shows me in the configuration because when using the DNS entries that MailCow recommends, I was not receiving emails from outlook. universalgroupbd. I consistentl Aug 9, 2023 · Since i switched to mailcow im having problems receiving mails. Nov 25, 2017 · I can send mails but I cant receive them. 0/0 ” . i guess i have added all mx recrods correctly. may be SPF has an issue. It’s attached below. Yes, I did create a mailbox, not an email address. 3 active. 'Exchange Hybrid' O365 deployment (O365 receives and & filters mail) Similar to above, but O365 assumes all responsibility for receiving and filtering mail. I have setup the mailcow docker container as per the documentation. sh Receive mail from non-existing email SOGO_EXPIRE_SESSION from mailcow. I have read the api file of mailcow. com) has TLS 1. I send outbound email over a different port # and to do this I use a mail relay with a provier over port 2525. Email sent through a different mail server (nethserver) with same clients are formatted as expected. I'm not able to receive emails from any provider except Gmail. - Receiving email is easy. I can successfully send emails from sogo to gmail without issues. 005 - - 0 - 13 sogo-mailcow_1 | Mar 9 10:02:08 b058f3079613 sogod [68]: mailcowdockerized_watchdog-mailcow_1. Running a mail server without an IPv4 address can lead to delivery issues, as many receiving servers are not fully compatible with IPv6. I install my first mailcow serveur 3 days ago , no major issue with it , until tonigh , i notice a strange issue. So to do this outside of self hosting can get expensive. But, when I try to receive emails, from any address on the external internet I do not receive them. MariaDB seems to be restarting out of the blue. Which would you recommend for a no headache experience? Thank you in advance! LE: Went ahead with Mailgun and their Routes. There is an issue occuring in getting the email on the server. 2 and TLS 1. I actually also thought that you should receive a mailer daemon notification in this case. Good morning, we are having a problem with our mail server. Nov 13, 2024 · I recently set up Mailcow (Aug 20 release) on a cloud hosting provider (Scaleway) behind Traefik. nz and the activation mail arrived 8 minutes later. I’ve also setup SPF, DKIM and DMARC policies and the tests have been successful so far on MXtoolbox. Action: failed Status: 5. possibly via firewall. 2) go to the user menu of the email address on which you receive system messages, and add a rule to the spam filter whitelist. I can access the mailcow server from that address and even acess SOGo on my browser. Dec 22, 2018 · Hello, first I searched in old issues but don't found any helping information. However when using mailcow, we can’t receive such email at all, they wont even hit Rspamd (rejected at postfix level) The Workaround Chance are it is because postfix is configured to not to deliver emails with a […] mail. Thanks a lot for your time. Manual migration options are usually more complicated and even time-consuming. I can send mail but can’t receive. Problem: MX record for the mail. Of course all other records like SPF and DMARC should also be set up accordingly. I would greatly appreciate that. I have the following issue: From the Docker host system there were some system emails sent to root@localhost. Easy to set up and use and feels very modern Mailcow is the best! I have set everything correctly and all my emails are getting to all recipients at google, outlook and icloud. I also do get email notifications for unattended upgrades, Veeam Backups and MailCow Backups with postfix as a send only smpt server using relayhost set. 33. 2, can send emails to external address no issues (not getting flagged as SPAM) but I cannot receive… Mailcow not receiving mail #1878. gmail: does not work; I am using namecheap DNS and a server1 with nginx reverse proxy that forward to server2 which has the email server. Please advice where to investigate. Here are some top-notch features of the expert solution that makes it a favorite choice among many. com"; Feb 7, 2025 · If you’re upgrading from mailcow stable to the nightly branch, all existing users will automatically receive a new attribute: Identity Provider, which is set to mailcow (SQL database) by default. I can send email to my @gmail, it arrives nicely in the inbox, but reply emails do not reach me - at all. I have a problem with Mailcow; I cann’t send mail but can receive it. com address do not arrive. Closed 5 tasks done. com with a MX record pointing to mail. Emails to and from any other domains (Gmail, Yahoo, etc. Please help. This emails are stuck Mar 31, 2023 · I have the “mail. In both cases, the email goes into the sending queue but is not sent. You will not be able to configure a DNS PTR record for a reverse DNS lookup which, in most cases, is paramount if you do not want your messages blocked. U Inbound mail is received by mailcow, outbound mail is relayed to O365. I can send emails to my server with ease, but when it’s time to send I get various issues. The email is a typical cryptocurrency payment email. de When I SEND mail from this So I installed CloudPanel with MailCow, and managed to get sending emails with smtp working, but I cannot recieve any emails. com[ip]: TLSv1. No firewall r p0wer thanks for your response. 2. (The required ports are open, but even with the firewall completely deactivated the mails do not arrive at MailCow). I'm leaning toward the Exchange hybrid approach but curious to hear what others are doing. Installation worked smoothly. This has happened multiple times. From A to CNAME Am able to send within my domain and outside. 0. Just connect to port 25. traperto-hosting. Mar 11, 2020 · I get the following when receiving mails from gmail. example. 1" 200 Jun 26, 2023 · After a quite long time I finally started to fix that issue… yes really late but it was running with the workaround. mailcowdockerized_mailcow-network "GET /SOGo. Hi there, I’ve followed the setup guide and cannot seem to get mailcow to work on my DigitalOcean VPS. A mail from mailcow is bounced by a receiving server with the message “Cannot start TLS: handshake failure”. I am receiving and able to send emails from Sogo but imap seems to not work smtp tests says working but unsure if fully working I have attached photos of my configurations and uploaded my main maincow config. 2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)” which would suggest a successfull Guys here is my situation. I wrote the rules and forwarded the ports. For webmail, Rainloop is wonderful. tld] 104. com). But on most companys or services it takes up to 5-10 minutes for the mail to show up in my mailbox. This will remove them from the blocked list, so you can receive their emails. The biggest highlight is of course the support for external authentication sources. I found numerous discussions online from the past 2 years similar to my problem and no clear resolution seems to exist. 7] I have deployed mailcow in our local server and pointed to the domain. If your website is hosted on the same Docker instance you’d need to point smtp hostname to the internal IP of postfix. cloud After installing MailCow, I did not make any changes, I only added the domain and users. Thank you all for your valuable input. It worked flawlessly. I am unable to receive mails. With DKIM, SPF and clean IP, things work. Screenshots self explanatory. I dont know why its not working. See full list on docs. ETNyx the firewall is mine. There is no issues in sending an email from the server. Please help me in the IMAP configuration or any related configuration that i should have to do. I had set up my mailcow yesterday, and it was working just fine. ^^ I tweaked the process to stop receiving emails and continue sending with DKIM and SPF by changing the mailbox size to 1MB, then I overloaded it with an email. I am separately installed the Nginx and wrote the config file for my domain. still, I can’t receive any emails from GMAIL and others. I’ve successfully setup mailcow, and I’ve been able to send and receive mails using webmail interface. But the tests mails I sent from an unrelated @gmail. I already had a Mailgun account and so far so good. My domain is: ghent. I have enforce tls for both incoming and outgoing but it was sending stuff normally. sh script from the mailcow folder I get the errors below Keep the MX record for xaasio. For further assistance, please send mail to postmaster. At one point used Luke Smith's emailwiz script to install postfix and dovecot directly on VPS which kind of worked, I could receive mail but could not send mail. txt looks like this on MiaB: version: STSv1 mode: enforce mx: box. I can use the webmail, receive emails OK etc but I’m having trouble sending emails. What is the best way to achieve this in Mailcow? I am able to send mails from the mailcow via SES, but not to receive them. Yes, restarted the system a few minutes ago, uptime 8 minutes, but same behaviour. fortigate. Here’s where you’ll add the domain name you’re using for your email (e. Were you able to send outbound emails from a mail server before? The reason I ask is my (and I suspect many) ISPs block port 25. Of course, you will then not be able to receive emails from or send emails to IPv6-only mail servers. Then I restarted docker instances and I received new mails again. If the postfix log I see this: Not sure if my postfix is doing this or the senders server is doing this? Feb 16, 2024 · So M$, Proton, and Others, I can receive emails sent by their email servers but when sending from GMAIL, not even get a connection to the server. you said its working for others and not for you. How to reproduce Reproduce Steps to reproduce the behavior please explain how to reproduce the bug: send an email - nothing receiving works as expected. manually configure a thunderbird client with the provided config settings, sending and receiving mails with no problems; autoconfig a thunderbird client without any problems. Everything just works and was pretty easy to setup with Mailcow - Sending email and not ending up in spam was not as difficult as expected. When I am trying to run the . But only problem is I can't receive any email from any host including own host. Are you sure that your installation has enough ressources as per requirements? Mailcow is a all-in-one mail server suite based on Dovecot, Postfix, SOGo, Rspamd and other open source software, that provides a modern Web UI for administration, including API. Hello, I installed MailCow Docker on my VPS, the installation worked well, but after testing, I noticed that I could not receive mail. I've encountered an issue after updating to Veeam Version 12 and was hoping someone might have come across a similar problem or can provide some guidance. Kindly help me to resolve the issue. I am able to receive emails to bbb@rokeby. As a result, I’m unable to modify my rDNS record, though I’m not sure if that’s relevant to my current issue. /update. Feb 5, 2025 · Migrate Mailcow to New Server with The Best Solution. g. The Hetzner Cloud server was created Since it updated some of the mailcow containers I have not received any emails. Jan 10, 2021 · Mailcow Mailcow is a free, open source software project. But the mails are not receiving in mailcow. https://mailcow. I hope someone can help me to understand the problem. lumideez opened this issue Jan 29, 2025 · 1 comment Closed 5 tasks done. I can send emails but not receive them. myprivatmail@mail. and now when I try to send an email, even without any subject, I get a “Mail Delivery System”. BUT. Sep 2, 2020 · I have the appropriate emails listed in mailcow. Any help is appreciated 🙂 Best regards! Hi im new in mailcow, i switched to new server (Hetzner) and mailcow to avoid deliverability problems that i had with contabo vps and plesk email services, i follow the instructions as per mailcow documentation for ubuntu installation, But i spend over 4 hours to fix the problem that not Sending emails, i cant understant why happened that, I Can't Receive Emails Not receiving emails? Below is the list of basic troubleshooting steps if you're having issues with your incoming emails. 6. While IPv6 adoption is growing, many mail servers still rely on IPv4. I can send it to GMAIL and I can see that it says all email validation settings are ok, but if i reply I get nothing. Any help is appreciated 🙂 Best regards! Feb 23, 2022 · receive to mydomain from mydomain: works; receive to mydomain from external domain e. The only port I’ve been permitted to use is the SUBMISSION port (587). This is not even limited to Mailcow and Stalwart though but true for all email servers. I don’t get any return errors when trying to send send mail to my email from Google address. 04 on my VPS, without a problem. I tried on my computer and it works, but on the server it also times out. 9k emails. If the person you're expecting an email from is on this list, click on their name and select Remove. Also not add the ssl for my domain. com[ip] ehlo=1 starttls=1 commands=2 info lost connection after STARTTLS from mail. org is created. protection. caronc/apprise wiki/Notify_email#e-mail-notifications. kindly suggest the changes. 8/10. Can you help me with this problem? There are so many problems in that log, that you should reinstall mailcow from scratch. email autoconfig -> mail. apiary. I recently set up a mailcow server but I am having problems sending emails. ` Mar 11 14:02:29 mail postfix/smtpd[571]: All receiving domains hosted on mailcow send from one reporting domain. You can change this for each user anytime by navigating to: E-Mail -> Configuration -> Mailboxes and editing the user. However, in the afternoon, it stopped receiving mail from any addresses over the internet. Whenever I send an email from Outlook or Gmail to my mailcow inbox I recieve it within 2-3 seconds which is perfect. To fix that issue, I changed the password. Jul 22, 2024 · Click on Junk E-mail Options from the newly opened menu. all the other ports are working fine Ah, you’re running your server at home, so it won’t be possible for you to set the reverse DNS at all… additionally your outgoing mails will mostly be blocked as SPAM because most mail servers check if the mail’s origin is a dynamic IP address of some ISP. Learn how to troubleshoot and resolve issues when Gmail is not receiving emails with this step-by-step guide. You will need to find an app that can do this. `# —————————— mailcow web ui configuration —————————— example. Dec 10, 2024 · Head to the Configuration tab at the top of the dashboard under E-Mail. Dear Veeam Community,I hope this finds you well. It still receives mail sent from its own postfix server, and my email client on my laptop is able to read that mail just fine, so I don’t think it’s a firewall issue. I have no customization implemented or configured. Jan 2, 2022 · Below is what I get: `*** ENVELOPE RECORDS active/A1BA91A4D70 *** message_size: 3796 843 1 0 3796 0. I’m using “v=spf1 ip4:<public_ip> a:mail. com, it returns 554 5. I don’t know if the problem is my DNS setup or something internal. The web interface is working fine. You can send it via the host mailcow is running on. I am playing with mail servers using Mailcow and I’d like to receive emails to a 3rd level domain linux. I recently deployed Mailcow on an AWS server, and I’m encountering an issue where I’m unable to receive emails from G After migrating my dad’s private email domains, including our family domain which host my main personal email account, my dad has reported over the last couple of weeks that he’s not receiving all of his email verication emails from various organizations, usually in an effort to reset or update the password, MFA, and other profile related operations. Here are the details: I followed the installation guide step-by-step. There is nothing of the mail in the logs. 1 but the dotcov container couldn’t access to dns so i changed the unbound config file and allowed the 172. index/ HTTP/1. I can send emails from SOGo to my personal Gmail and Outlook addresses with SPF and DKIM fully functional. However, the Mailcow account never receives it. esackbauer If I send a message from one of the email accounts that I have setup in Mailcow (peter@mydomain. the sign up email from this forum arrives fine, as do most other emails. com, but if I try to send to bbb@linux. com -> 10 -> mail. 0/24 network. com, because you want to receive actual mail. Example: info@mydomain. Is your domain on client hold status? If yes, update your domain contact information and follow the verification email for changes. com change the following config to domain = "example. Mailcow is a all-in-one mail server suite based on Dovecot, Postfix, SOGo, Rspamd and other open source software, that provides a modern Web UI for administration, including API. Feb 14, 2025 · As long as you do not do something in the postfix container that is ok. I can see the I have a domain abc. 95. Jan 19, 2019 · same address like [email protected] sends to [email protected] it should not reject the emails . The technician says, that the mailcow is offering only TLS 1. manually configure my Outlook 2016 client, receive and send emails. In Sogo I can see my all sent mails in sent tab but inbox is empty. Does anyone know what this might be due to? Thanks in advance Hello, I ran into such a problem that I can’t send emails (I get a response saying that the server could not send it due to a timeout) but I can receive emai Mar 1, 2023 · This seems to be an issue the mailcow community is not very keen on providing support for or is simply somewhat of uncharted territory. org is a primary domain. But I can send them mailcow community - official community forum! Hi there, I am very new to email servers and the sort. 2 ETNyx please how about running the mailserver on 465 instead of port 25. To get nofications for errors during backups. You should now receive your system emails. My Mailcow has processed 13. It lands in inbox and not spam, which is reassuring. If the emails are NOT going to a single email address then you will need to make a global pre-filter to do this. 202. Do I have to create an extra DNS record? I have no idea why always comes a timeout, i have set my DNS exactly as it says on the Mailcow page. There's no "tweaking" needed for any of these but both of them should have proper configuration to have a good working email server. I can send emails, and emails are coming into my junk folder. Here I am not using the default mailcow docker Nginx. The Probelm is that i can send Email but not recieve them. The best bet for this could be Corbett Email Backup Tool, which significantly simplifies migration to Mailcow. I have confused myself into frustration and now just need to ask for help. I also checked Common Problems' corresponding section, my IP is not blacklisted, and my server's mail ports are not blocked at all. com When I SEND mails from this mail address it works and my partner receives them. The mail cow system is running on a Debian VM on unraid, which also has nginx proxy manger and a few other things running on there if that matters at all. My MX records are set to deliver mail directly to my mail cow server, and the logs I’ve posted earlier in the thread indicate that the messages arrive at my mail server, but mail cow is not delivering them to my local HI, thank you. I can send mails to Gmail without problems, but not receive them. But neither in SOGO nor in Outlook / Thunderbird are the Mails visible Hello, I can receive emails, but I cannot send any. But do not change something in the compose. I found out that Hetzner (and most hosts) block port 25 by default, so I have instead set up a Mailjet account and I’m trying to use it as an SMTP relay. Feb 12, 2025 · Hey, Is there a way to receive all of my email replies for all email accounts on my mailcow instance, to be collected at one single isntance, like a master inbox? where i can receive all the emails being received to my email accounts? Is yes, kindly explain in layman’s terms. If I try to send from sogo to sogo, it works as expected. I just need to receive them. But it did not come. Is your domain name expired? If yes, renew the domain registration. 90, I entered the rspam container and verified that the rspam service is stopped and cleared all the . In simple words, this step is essentially telling Mailcow, “Hey, this is the domain we’ll be using to send and receive emails,” so make sure it’s the right one. In RSpamd are the Mails visible an Tagged with no action. conf, and have updated the containers (docker-compose down / up -d) but still do not receive any watchdog notice when restarting the containers. Mailcow has a tab/setup to specifically handle this (Routing -> Sender-Dependent Transports). mailcow. Since I'm on residential IP, I can't change PTR records, so I won't be able to send anyway. 1" 200 2573/0 0. In this blog post, I’ll walk you through the current state of the nightly branch of mailcow. 27. com autodiscover -> mail. Certain addresses are receiving an email from your email address saying that they have been victims of a phishing attack. Now, I'm not receiving emails in my inbox. I can send email from my mailcow account, but not receive. E. 1 bbb@linux. kindly check my DNS details for a domain. It is not going to work if you have a dynamic IP address. Mail-Test. observer[157. Thanks you Outbound mail is routing through sendgrid as expected and working correctly. But then I tried to sending emails again from gmail and I wasn’t receiving anything. Mailcow provides a modern and easy to use web interface to create and manage email accounts. com pointing only to email. 1 timeout post-processing message;” I have my own personal mailbox on Mailcow but then I forward few aliases to different email services for family or friends. Aug 25, 2018 · Updated mailcow this morning and noticed email delivery stopped. But our mailcow (mail1. rokeby. I think It's something with Postfix. , yourdomain. Sending is not a problem at all to anyone. check your DNS setting on the DNS provider you need to provide the TXT / SPF / CNAME / MX and PTR records so it can work. tld max_age: 604800` As I wrote earlier, you can disable the use of IPv6 in Mailcow. I also changed the IPV4_NETWORK to 172. Any ideas? A mail was attempted to send to me and I didn’t get it. Jun 23, 2017 · I solved many of my issues in #380 but now have new issues since updating. com” as dns only, as are any related to the email system, as I read it could cause issues, but whether or not the proxy is on or off, I get the same results. Feb 19, 2020 · Hello, since the mailcow update, I no longer receive verification emails from my ovh. However, when I try to send an email, it doesn’t get delivered. Mailcow is installed according to the original documentation on a clean Debian 11 system. Everything just works and was pretty easy to set up with Mailcowesn't know. I created a few email accounts. This means: abc. Nov 25, 2023 · I can send mail but I can’t receive mail. I have added this domain as realy. So no idea if you are using Cloudflare as reverse proxy for your mailcow or not, but is it setup correctly? Apr 6, 2022 · I have mailcow installed using docker and runs very well in sending and receiving mails using the defined domain. Nov 18, 2020 · But no luck, sending emails from wordfence is not working, and sending emails from normal email app or inbox works fine. However, it’s not possible to do this via mailcows GUI. I can send email to everyone , no problem , I can receive email from everyone , except gmail , i don’t understand why ( and i dont found any gmail trace in logs 🙁 ) Does someonehave an idear ? Looking to either self host or use a free mail service only for receiving emails (catch-all, multiple domains). Mostly. Use a different mail domain (like dev. conf Problems with e-mail sending to yahoo. com Yes, I definitely prefer Mailcow over Stalwart. Inbound mail is not going through sendgrid. Also, incoming emails are not showing up in mailcow community - official community forum! When I am using OVH Cloud, I can send and receive mail. . Sounds like one or more ports might be blocked. com account. footers and you are above the 50 MB. But when I send an email from gmail to my server, sogo doesn't show any received mails. If you do so, please include this problem report. I’ve got it sending momentarily by editing the SPF Record. ghent. com) to a Gmail account for example. Mailcow Postfix Logs: info disconnect from mail. Expected behavior When sending an email the recipient should receive the email. But when I switched to another VPS (Clean installation), it did not work anymore, I could still receive mails but not send them and yes I have checked my spam folder and searched up the sender in the recipient. Mailcow ports in server1 and server2 are opened. com"; Set email equally, e. The mails howerver aren´t being rejected. It looks a bit like the mail has not arrived on the server. This is not idea May 13, 2025 · Moohoo everyone. What I did is: When the rspam container was at version 1. The strange thing is that for example user@mydomain. mailcow. It will not survive updates. I have tested by sending mails using webmail in mailcow. To my best knowlege all is working fine with Mailcow. However, in every case, the Mail Delivery System Dec 22, 2018 · I can receive emails but cannot send them. I installed mailcow a couple of days ago. I have had no problems so far with sending or receiving mail, except when someone sends me mail from Gmail. Logs Please take a look at the I install for the first time a mail server and I’m newbe. Jan 30, 2022 · When a mailbox is created, a user is allowed to send mail from and receive mail for his own mailbox address. All dns checks from the console check out and normal mail and services work (and localhost mail from the host machine is working fine). Apr 7, 2025 · I can confirm that many mail servers around the world do not use IPv6. 21. I then respond to the received email. The default mta-sts. Specifically, I’d check that port 80 and 443 are working for web (which are needed for the Exchange verification piece since it’s in the nginx config) and that ports 143,587,993,465 in addition to port 25 are working for mail (depending on whether you’re using TLS Feb 12, 2024 · Then when I logged in once again to my malcow mail I saw the messages I previously sent from my gmail account to mailcow mail. I changed my DNS settings as per the new acme requirement. There is no problem in sending mails to any other domains. com gives me 9. I have a server which has Mailcow instance that works perfectly. com mx -all” and this works for receiving but not for sending. Kindly explain how it is that you can still receive mail if your ISP blocks port 25. net”, but at the firewall the port is open “accept / TCP / 25 / 0. /generate_config. I’ve setup logs using: Apr 4, 2023 · The Issue Sometimes we need to send email from a device/server directly without a proper domain/valid domain name. Unbound Health check not working problem with . including port 25. Jun 21, 2019 · Hey, last night i installed MailCow, worked fine. Note: a mailbox cannot be created in an alias domain. Mailbox me@example. com[2a01:111:f403:2613::701]: TLSv1. Except when it doesn't. 1. You can delete your own text from the attached returned Mar 15, 2025 · I had mailcow already installed on my system when it was directly connected to my modem. You -can- use mailcows GUI to create a pre-filter for emails and do this the same way, though. Basically looking for a self hosted version of those alias services. Jan 20, 2022 · mailcow community - official community forum! When I try to send mails on my mailcow instance (SOGo or IMAP), I often do see the following error: “4. KMail on KDE has this ability. My environment is rocky linux 9, and I’m using docker for the first time to set up mailcow. com. The problem Autodiscover is not working T_T Nov 5, 2024 · My email account was hacked last week. record = MX, host = @, points to = mailcow. Feb 18, 2024 · I am able to send emails But not receiving. Hello Mailcow Community, Just finished deploying mailcow via following a couple of online guides/referencing the official doco. Hier sind häufige Probleme und mögliche Lösungen: Mail kommt in einer Schleife zu sich selbst zurück. When i try to reply to the same email i get a bounce message back with this text : The message was not sent / 530 Authentication required. 1 bc i was already using 172. I thought it might have been DNS cache and hoped that this was solved. in, which is hosted on Mailcow, and I want to restrict its email communication only to abc. me@example. I’ve set up a new VPS using Hetzner cloud and have followed the instructions to install mailcow. It is recommended to use the parent domain of your MAILCOW_HOSTNAME: If your MAILCOW_HOSTNAME is mail. A Mailcow server is a collection of Docker containers running different mail server applications, SOGo, Postfix, Dovecot etc. Häufig auftretende Probleme. Forced each docker to use openDNS and now I can receive and send mail again. 3, but the their receiving server only supports TLS 1. Feb 23, 2022 · receive to mydomain from mydomain: works; receive to mydomain from external domain e. Instead, you need to send out emails through your ISP's mail relay. outlook. ```. email composed in betterbird –> not working; email composed in sylpheed –> not working; Using system wide footer is working with sogo, but not working (again umlaute) using a email desktop client. io/# But I don’t see any api for sendmail. email = "noreply-dmarc@example. Both, Mailcow and Stalwart, make the configuration easy and both are well Also it is important to understand that attachments get uuencoded into “human readable characters” because SMTP does not support binary attachments itself. I cannot send or receive email. ¶ Bitte überprüfen Sie in Ihrer mailcow UI, ob Sie die Domain als Backup MX eingestellt haben: Since forever I can not receive mails from gmx, I never bothered since hardly anyone I know uses that service but now I caused a couple of mails to get dropp May 16, 2017 · I can receive mails from external services like Gmail, but I can not send any mails. org. I works fine for a Jan 29, 2025 · Mailcow sending out emails through SoGo but not recieving any emails #6277. I am able to send mail, but not able to receive. I have configured my mail server in mail cow, Now I am able to send mails to all the domains, while i am not receiving their reply mails. Apr 10, 2021 · Mailcow is a dockerized, seemingly easy to manage mail server suite. For example, if i sent a mail to me with my gmail oder yahoo account it works flawlessly within seconds. I can ping the server, though. com score of 7. Aug 27, 2019 · Hi I have installed mailcow on Centos 7. com, and configure the mail domains not in both servers! Posted by u/pizzasamurai214 - 1 vote and 2 comments I am facing similar issue. All DNS settings are in place and working, including SPF, DKIM, and DMARC. com: Relay access denied Maybe it has something to do with max age that was set on Mail-in-a-Box server. If it’s on an external box to Mailcow, then you are on the right track with what you posted above as details for hostanme, user & password, but you need to use SSL on port 465. or what do you suggest. org is allowed to send as me@example. I am kinda new to using the terminal and doing stuff there, so I would really appreaciate some help. please help me. I already found myself unable to send or receive emails with mailcow after few days of working. I followed the suggestions of the tutorials regarding setting and am thinking I have overcomplicated things for but i can send email to all domain. After the ins I use itzg/docker-mailserver for the email server, works great, and unlike mailcow does not need access to your docker socket. com[ip] info Anonymous TLS connection established from mail. I have no problems sending out emails from SOGo, but I can’t seem to receive any emails. I’m sorry to have to inform you that your message could not be delivered to one or more recipients. tld is exposing the Mailcow server IP address, I want the IP hidden. 1) go to the administrator menu, (System > Configuration > System Mail) you will see the address that must be added to your white list in the spam filter. I send email from gmail to my domain and this is the postfix log that I can see. I prepared my DNS and installed mailcow-dockerized on a clean Ubuntu 18. I don’t receive mails from Gmail accounts. com record = txt, host = @, txt value = v=spf1 mx all. Yes, in fact all of the 4 domains point to Cloudflare: mail. I look at the logs and I do not receive anything from ovh. smr skostsw hxoi esnp bdrk haoil shinq lngwx wxlze jostlgq
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