dblsaiko

Two different rDNS names, for stuff that uses it. For example if you want to run mail and an IRC bouncer under different domain names.

Tbh I haven’t had too many problems with Postfix – however it is certainly a footgun and it would be nice to have fewer parts to connect together, and better defaults. I might try it out, it looks interesting.

From its web page it sounds like it is both a MTA and MDA, has a built-in spam filter, plus has calendar, contacts and file storage. Do you know how it compares to my current setup of Postfix, Dovecot, and rspamd (and Nextcloud for the others)?