Roundcube

1. Copy .env.example to .env and replace the example mail-server values.

2. Start the container:

   docker compose up -d
   

3. Open http://localhost:9002 and sign in with your mail credentials.

The container publishes Roundcube on host port 9002. SMTP uses port 587 by default and the tls:// server prefix, which makes Roundcube negotiate STARTTLS. Its database is retained in the named roundcube-db volume.