Self hosting email, FLOSS, Python ... (lemmy.sdf.org)

submitted 6 days ago* (last edited 6 days ago) by [email protected] to c/[email protected]

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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.

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[-] [email protected] 2 points 6 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.

this post was submitted on 25 May 2025

27 points (86.5% liked)

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