Hi,

I would like to host my own email server.

I know the pros and cons of doing so, please do not post about the advantage or disadvantage, there is others open topics for it.

I would like my setup fit those “requirements”

  • FLOSS
  • Be able to create complex rules for incoming/outgoing email ( with 🐍 Python language preferably ).
    • based on any properties (subject, ip, header, size, attachment, signed, encrypted, etc… )
    • able to modify, delete, fw, etc… the email
  • Manage the limit of sending by size and number of outgoing over time (min, hours, week, etc…)

 

If you know a matrix comparison between email servers I’m all ears.

If you have any feedback with a solution this is most welcome too.

I plan to update this post to create a matrix/spreadsheet of all the solutions that I’ll gather.

Thanks.

  • aksdb@lemmy.worldEnglish
    4·
    15 days ago

    Use Stalwart as mailserver. Besides coming with sane defaults, it allows to put hooks into almost every mail stage. Those hooks can be sieve scripts, local binaries or http calls.

  • Shimitar@downonthestreet.euEnglish
    2·
    15 days ago

    See my personal notes. I do selfhost mail server, but on a vps to have a good IP

    Being doing so for 20+ years and recently rebuilt the entire stack.

    See https://wiki.gardiol.org/doku.php?id=email%3Astart

    In short, I use postfix+dovecot, with opendmark and opendkim. Setup proper DNS email specific records and a few more steps.

    Overall it runs fast and perfect on 4gb ram very old dual core atom CPU.

  • Lyricism6055@lemmy.worldEnglish
    21·
    14 days ago

    I definitely don’t suggest self hosting email unless you don’t care about losing messages occasionally

  • InverseParallax@lemmy.worldEnglish
    1·
    14 days ago

    Ran the stack manually for decades, but spam makes it harder.

    Run mailinabox now, it takes care of everything pretty well.

  • TFO Winder@lemmy.mlEnglish
    0·
    15 days ago

    I have heard people have successfully utilised Mailcow without any issues for many years.

    Personally gave it a try once but setting up ports, firewalls, virus scans, anti spams, dns felt too much effort for what I was going to use it for

    • ikidd@lemmy.worldEnglish
      1·
      15 days ago

      Using Mailcow for years now, love it, but I don’t think it checks the custom scripts box of OP. Since it’s all containers, you’d have to do some custom bind mounts to hook the underlying containers and keep the scripts, which might have some unintentional consequences depending on the upgrade.