I've completed the setup on nymeria and I will switch dns tomorrow so I'm available if issues arise. All accounts currently forward email to outside email addresses so you will only notice this change if you use gerolde to send mail from your @archlinux.org address. In this case you'll need to reconfigure your clients to use the following credentials: SMTP/IMAP/POP3 server: mail.archlinux.org (DNS TTL was 1 day so this might take a little longer to update) SMTP port: 587, 25 Username: your nymeria username Password: your nymeria password. If you don't have one yet, set it with passwd. Since I use dovecot for authentication local mail storage will also be available (simply remove or empty your ~/.forward file to use it) and can be accessed via IMAP or POP3 (default ports). Please note that currently it is not properly backed up if at all. If anyone actually wants to use it I'll set up the backups. Also note that local storage is currently configured to use dovecot's mdbox storage format which is more efficient than maildir, but can't be read directly by software like mutt. You'll have to go through IMAP/POP3. I believe nobody currently uses local storage on gerolde so this shouldn't be a problem. All connections involving authentication are required to be encrypted (STARTTLS for SMTP, STARTTLS or TLS/SSL for IMAP and POP3) I plan to move mailman to luna (bbs, wiki, aur box) once this transition is done. If desired I will also set up roundcube on luna so we can have a webmail for our local (well nymeria) mail storage. PS: I've currently enabled soft_bounce on nymeria so any mail that would hard bounce will only be deferred with a temporary error. This could lead to bounce mail being delayed for a few days. It will be turned off once I'm confident the setup works as expected.