I got it up and running in a tiny LXC (Debian 13, 2G RAM, 1CPU and 4G disk), took about 10 minutes

So far, it looks solid, I am yet to enable JMAP and I'm not sure I really need it for a POC.

The "Enterprise" options (Tenants, AI stuff, ...etc,) are not really crippling it, https://stalw.art/compare/

I am still trying to figure out how to setup SMTP relays, and if there is a way to run fetchmail natively a la Mailcow.

Any questions or test requests, let me know

-nick


On Mon, Jan 12, 2026 at 10:16 PM Ron via Talk <talk@lists.gtalug.org> wrote:
Steve Litt via Talk wrote on 2026-01-12 13:23:

> I want to hear about this too. My entire email usage depends on
> Dovecot, and Dovecot 2.4.x has jumped the shark in order to offer a
> proprietary product not in competition with their free software

What changes are you referring to?


I've just looked over this page:

https://doc.dovecot.org/main/installation/upgrade/2.3-to-2.4.html#removed-features

and I'm seeing some things I like, some I don't know about, some that
may bite me, but nothing about removing features that I use.


Global ACLs are a PITA, and they're changing how to implement ACLs, so
the ability isn't gone, just different.

IMAP SETQUOTA is going away, but user_db / pass_db (userdb_quota_rule=)
is where I set those anyway. Don't think it'll affect me?


The "Backends and Plugins" section will require careful parsing at some
point.

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