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Is there a good email server that can be run through Docker? (lemmy.ca)

submitted 5 months ago* (last edited 4 months ago) by hackysphere@lemmy.ca to c/selfhosted@lemmy.world

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I need to run my own email server for some of my domains, because the providers that I usually use don't support them (they use Unicode characters, and not everyone supports that yet). I have a small VPS that I run a few Docker containers on, and I'm wanting to try and run an email server on it as well. What containers are good for a low-hassle email setup? I don't need a mailbox webui (ex: roundcube), but it would be nice to have a UI for management. I do need multi-domain support, however.

EDIT: For anyone wondering, I decided to go with Mailu. Stalwart didn't play will with internationalized domains (although it was the only server to support EAI/SMTPUTF8), and Mailcow would have been a bit more difficult for me to change to bind mounts and reconfigure Docker networking with.

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[–] osanna@thebrainbin.org 6 points 5 months ago (7 children)

You're gonna have a bad time if you have to email MSFT/GOOG. MSFT was worse in my experience. their DumbScreen tech was horrible. Even the tech couldn't get my emails to not go to spam. Gave up in the end. The likes of MSFT and Google make it nigh on impossible for people to self host their own email.

[–] Shimitar@downonthestreet.eu 9 points 5 months ago (5 children)

Been running my own mailserve for last 20 years and never had big issues.

Do dkim dmark stuff and DNS records properly and you will be fine. Also don't spam and beware of spam-related subnets, and you should not have issues.

[–] moonpiedumplings@programming.dev 7 points 5 months ago* (last edited 5 months ago) (4 children)

Have you considered that the reason why your mail server is trusted is because it's been around for 20 years?

Have you tried to set up mail from scratch on a new domain/ip recently?

[–] lukecyca@lemmy.ca 2 points 5 months ago (1 children)

I've been running my own email server for 15+ years. One year ago I needed to change VPS providers and thus get a totally different IP. I worried about this a bit, but actually had no issues whatsoever. Of course, I wasn't starting completely from scratch as I had the same domain, all my personal experience, and a battle-tested configuration for docker-mailserver. But yeah, the lack of IP reputation itself didn't seem to be an issue at all. Maybe I got lucky. Or maybe it's because I chose a relatively small Canadian VPS provider rather than one of the global cloud giants (I assume their IP address space gets pretty trashed with scammers).

[–] moonpiedumplings@programming.dev 2 points 5 months ago

What about domain reputation?

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