From 61f7f574c8deaf49b42840c43e2c49e11b850fc5 Mon Sep 17 00:00:00 2001 From: Nicole Rappe Date: Fri, 19 Jun 2026 15:46:12 -0600 Subject: [PATCH] Update deployments/services/email/mailcow.md --- deployments/services/email/mailcow.md | 24 ++++++------------------ 1 file changed, 6 insertions(+), 18 deletions(-) diff --git a/deployments/services/email/mailcow.md b/deployments/services/email/mailcow.md index 6e097e7..0dc6afe 100644 --- a/deployments/services/email/mailcow.md +++ b/deployments/services/email/mailcow.md @@ -1,25 +1,22 @@ --- tags: - -* Mailcow -* Email -* Docker +- Mailcow +- Email +- Docker --- !!! warning "Under Construction" -The deployment of Mailcow is mostly correct here. Mail protocol ports should be forwarded directly to the Mailcow server from the firewall. Traefik should only sit in front of Mailcow for web traffic, and it should pass HTTPS through transparently so Mailcow can manage and serve its own certificates. + The deployment of Mailcow is mostly correct here. Mail protocol ports should be forwarded directly to the Mailcow server from the firewall. Traefik should only sit in front of Mailcow for web traffic, and it should pass HTTPS through transparently so Mailcow can manage and serve its own certificates. ## Purpose - The purpose of this document is to illustrate how to deploy Mailcow in a dockerized format. !!! note "Assumptions" -It is assumed that you are deploying Mailcow into an existing Ubuntu Server environment. If you are using a different operating system, refer to the [official documentation](https://docs.mailcow.email/getstarted/install/). + It is assumed that you are deploying Mailcow into an existing Ubuntu Server environment. If you are using a different operating system, refer to the [official documentation](https://docs.mailcow.email/getstarted/install/). ### Setting Up Docker - Go ahead and set up docker and docker-compose with the following commands: ```bash @@ -35,11 +32,10 @@ systemctl enable --now docker # (4) 4. Make docker run automatically when the server is booted. ### Download and Deploy Mailcow - Run the following commands to pull down the mailcow deployment files and install them with docker. Go get a cup of coffee as the `docker compose pull` command may take a while to run. !!! note "Potential `Docker Compose` Issues" -If you run the `docker-compose pull` command and it fails for some reason, change the command to `docker compose pull` instead. This is just the difference between the plugin version of compose versus the standalone version. Both will have the same result. + If you run the `docker-compose pull` command and it fails for some reason, change the command to `docker compose pull` instead. This is just the difference between the plugin version of compose versus the standalone version. Both will have the same result. ```bash cd /opt @@ -60,7 +56,6 @@ docker-compose up -d ``` ### Firewall / NAT Configuration - Forward Mailcow service ports as follows: ```text @@ -80,7 +75,6 @@ WAN :4190 -> Mailcow :4190 Mail protocol ports should be sent directly to the Mailcow server. Traefik should not terminate or proxy the SMTP, SMTPS, Submission, IMAP, IMAPS, POP3, POP3S, or ManageSieve ports. ### Reverse-Proxy Configuration - For the purposes of this document, it will be assumed that you are deploying Mailcow behind Traefik for web traffic only. Traefik should pass HTTPS through transparently, allowing Mailcow to manage and serve its own certificates. You can use the following dynamic configuration file to achieve this: @@ -129,7 +123,6 @@ tcp: ``` ### Traefik-Specific Configuration - Traefik only needs the standard HTTP and HTTPS entrypoints for Mailcow web traffic. Mail protocol ports should not be exposed through Traefik if the firewall is forwarding those ports directly to Mailcow. ```yaml @@ -145,9 +138,7 @@ Traefik only needs the standard HTTP and HTTPS entrypoints for Mailcow web traff Do not add Mailcow mail protocol entrypoints or port bindings to Traefik unless you intentionally want Traefik to proxy those ports. ### Certificate Validation - Mailcow should manage and serve the certificate for `mail.bunny-lab.io`. - To verify the active Mailcow certificate on disk, run the following on the Mailcow server: ```bash @@ -166,16 +157,13 @@ docker compose restart postfix-mailcow dovecot-mailcow nginx-mailcow ``` ### Login to Mailcow - At this point, the Mailcow server has been deployed so you can log into it. * **Administrators**: `https://${MAILCOW_HOSTNAME}/admin` (Username: `admin` | Password: `moohoo`) * **Regular Mailbox Users**: `https://${MAILCOW_HOSTNAME}` (*FQDN only*) ### Mail-Client Considerations - You need to ensure that you generate an app password if you have MFA enabled within Mailcow. (MFA is non-functional in Roundcube/SoGo, you set it up via Mailcow itself). You can access it via the Mailcow configuration page: https://mail.bunny-lab.io/user, then look for the "**App Passwords**" tab. ### Running Updates - If you want to run updates, just SSH into the server, and navigate to `/opt/mailcow-dockerized` and run `./update.sh`. I recommend avoiding the IPv6 implementation section. Be patient, and the upgrade will be fully-automated.