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Comments (46)

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  cuu508
  Confusing title, "self-hosted mail" and "self-hosted email gateway" are two quite different things :-/
• graemep
  The title is inaccurate. Its a self-hosted transactional email gateway, not self hosted email
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  radiospiel
  An interesting combination of features.Personally, I have used nullmailer in the past to provide a sendmail compatible local install that immediately forwards email to the SMTP server of my choice. Has worked flawlessly.Obviously, that doesn't come with HTML form support, but then I am also not sure I would like the same binary to handle both a HTTP(S) endpoint and email submission :)
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  basemi
  Nice project, nice initial subset of options.At work I'm using Apprise (https://appriseit.com/) to deliver notifications.Are you planning to add more services or to limit Posthorn to emails?
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  ALLTaken
  I really want to try this, but I'm afraid my DNS will be blacklisted if I do. Can someone guide me and others, if this is the case? E-Mail is the most complex of everything I know in sysadmin/DNS/Server stuff.My current provider since almost two decades without any issues, except speed and storage limitations is all-inkl.com, but I really just use it for email and nothing else, therefore most likely overpriced at ~6€/month.I would love to switch to some VPS/root or anything where I can SSH and install, compile my own services, but something where security is high and support is 24/7 available.
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  npodbielski
  > Nobody wants to self host email server.I do. Though I am self hosting it to have my personal email, being well... personal. Not for my company so maybe I am not the target.Interesting project though. I always felt missing API to just send emails from some script in my mail server.
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  peter_retief
  I am running a local mail server using cloudflared tunnels and brevo for sendingpostfix/sendmail/dovecot/ingress setupI am really happy with the setup. (So far)
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  throwaway81523
  Is Posthorn a reference to W.A.S.T.E.?
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  singpolyma3
  "Not a mail server"... supports SMTP in and out
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  ranger_danger
  Don't services like SES already operate over 443/TLS and aren't blocked?
• EMAIL36245
  email.riamu.io comes to mind
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  crimsonnoodle58
  > Nobody wants to run a mail server in 2026.We do, and thats why we use Postal [1].The more SaaS applications that self-host email the better. It forces the big guys, ie Microsoft, to improve their blocklists and not lazily block entire ranges. Yes its work contacting them occasionally, but it keeps the internet open. The alternative is an internet where they control it all.1. https://docs.postalserver.io/
• privacyfish
  [flagged]
• funny19840218
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• nine_ch
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• palash76
  [dead]