What’s the resource usage like? I’ve looked into mailcow before but the recommended system specs are too expensive to make it worth it on a VPS.
Comment on Is there a good email server that can be run through Docker?
ikidd@lemmy.world 1 month ago
Mailcow-dockerized. I’ve used it for several years, it’s been flawless.
CetaceanNeeded@lemmy.world 1 month ago
ikidd@lemmy.world 1 month ago
Seems really low. I run it on a docker LXC with Nextcloud and bunch of other stuff, on 8 cores of an ancient dual Xeon Dell. I never seem to have to deal with latency on it.
johnnixon@lemmy.world 1 month ago
What happens if your server is offline and an email comes in? I’m genuinely curious what it would do. Or must you VPS host your mail server for maximum uptime?
lukecyca@lemmy.ca 1 month ago
All MTAs have retries baked in, so running a self-hosted email server that receives mail is actually one of the most forgiving services in this respect. If your server is offline, the sending server will retry several times over 24-48 hours before it gives up. Even the big cloud email providers will do this.
That said, there are other aspects of running an email server that require some extra rigour, but they’re more on the sending side (making sure emails you send to other people actually land in their inbox). Doable, but one of the more challenging things to self-host.
ikidd@lemmy.world 1 month ago
The other server sends again until it times out? Never been an issue, that’s just how email works. Most SMTP servers will attempt for a few days if they know the MX is valid. Besides, I’ve never been out for longer than an hour or two.