zone-mta

There are some really interesting choices for F/OSS email servers these days. There are SMTP+IMAP: - maddy[0] (I use this) - chasquid[1] - docker-mailserver[2] And combinations: - haraka[3]/ZoneMTA[4] (SMTP) + wilduck[5] (IMAP) Modoboa brings something new in that it bundles together the frontend but I'm very happy with Thunderbird (and there are other frontends like Sogo) -- the competition is stiff and modoboa really could use a front-and center image of what the app looks like on the main page. [EDIT] I forgot two! - iredmail (https://www.iredmail.org/download.html) - Apache James (https://james.apache.org/) [0]: https://maddy.email/ [1]: https://github.com/albertito/chasquid [2]: https://github.com/docker-mailserver/docker-mailserver [3]: https://haraka.github.io [4]: https://github.com/zone-eu/zone-mta [5]: https://wildduck.email/

Would you be able to share some stats, like how much disk space these accounts take up and such? For larger scale e-mail sending I built my own MTA (https://github.com/zone-eu/zone-mta), our main instance sends about 750k emails a day (mostly normal ISP traffic, maybe 25% marketing emails) and its most valuable feature is juggling with IP addresses and blacklist detection, so if some mailbox gets hacked, starts sending out spam and the IP ends up in Spamhaus et al then this IP is removed from the list for other users automatically. Has saved us a ton of time.