There are known security concerns with Fetchmail as stated in the German Wikipedia. If you require Fetchmail functions in the future, consider creating a Docker container for Getmail as it is considered more secure.

Fetchmail Workaround 🔄

If you need to receive emails from another account, follow these steps:

Redirect your emails to your new email account.
Export all data from your original account.
Import all data to your new account.

Port Management 🌐

Check for any port conflicts and manually change the conflicting ports if necessary. Use the following command to verify:

netstat -tulpn

Admin Account Creation 👤

To use Mailu, create the primary administrator user account, admin@{{hostname}}, using the command below. Replace PASSWORD with your preferred password:

docker-compose -p mailu exec admin flask mailu admin {{admin}} {{hostname}} PASSWORD

CLI User Management 🛠️

For managing users, follow the instructions in the official Mailu CLI documentation.

Starting the Server ▶️

To start the server, use the following command:

docker-compose -p mailu up -d

Debugging 🕵️‍♂️

Database Access 📂

To access the database, use the following command:

docker-compose exec -it database mysql -u root -D mailu -p

Container Access 🖥️

To access the front container, use this command:

docker-compose exec -it front /bin/bash

Restarting Services 🔄

To restart all services, use the following command:

docker-compose restart

Resending Queued Mails ✉️

To resend queued mails, use this command:

docker-compose exec -it smtp postqueue -f

Testing 🧪

Use the following tools for testing:

Updates 🔄

For instructions on updating your Mailu setup, follow the official Mailu maintenance guide.

Queue Management 📬

To manage the Postfix email queue in Mailu, you can use the following commands:

Display the email queue:

docker compose exec -it smtp postqueue -p

Delete all emails in the queue:

docker compose exec -it smtp postsuper -d ALL

Spam Issues 🚨

Inspect 🔎

Use the following tools to monitor your domain and email deliverability:

Google Postmaster - Analyzes deliverability and spam issues for Gmail.
Yahoo Postmaster - Provides insights and delivery reports for Yahoo.

Blacklist Check 🚫

If your domain is blacklisted, you can check the status with these services and take steps to remove your domain if necessary:

Cloudmark Reset Request 🔄

If your IP or domain is flagged by Cloudmark, you can submit a reset request:

Cloudmark Reset

OIDC Support 🔐

This role now supports OpenID Connect (OIDC) authentication with Mailu-OIDC! 🎉

To enable OIDC authentication, simply set the following variable:

oidc:
  enabled: true

For more details, check out the Mailu-OIDC repository.

References 🔗

For more information about this role, visit the GitHub repositories:

About this Role ✨

This Mailu Docker role was developed by Kevin Veen-Birkenbach.

This README.md was optimized with the help of ChatGPT🚀 and this conversations: