Selfhosted
A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.
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Self hosting email is a difficult business.
The main issue is that you must have a static IP and that IP needs to have a good mail reputation or you will be blacklisted in a few days.
Said so, Today there are pretty good selfhostable email stacks like stalwart
My solution, which has been running for over two decades, is bare metal with postfix, dovecot, opendkim, opendmarl, spamassassin and a few more poeces which are all absolutely mandatory. Plus a nice webmail and a few more optional pieces.
But on gentoo, not on nix
yeah, i checked some of the blacklists and my IP (static) seems to be ok. i'll check out the other services/app/executablees you mentioned, thanks!
The risk is that the IP will get banned AFTER you start sending out mail from it because it has zero reputation... IT happened to me too and it took months, if not years, to get it definitely cleared. And if you neighbour with a similar IP get infected and start spamming, it's all over again. This is the main issue with residential IPs, it's a very real issue.
To get around it, rent a VPS with a non residential IP and front the mail server there, with tunnels (wireguard+nft) back to your home mail server, so at least the public facing IP is good or has less risks or being blacklisted.