Re: Is there a lint utility for 2.4.x configuration?

 On 14/02/2026 16:17 EET Steve Litt via dovecot <[1]dovecot@dovecot.org>
 wrote:


 Hi all,

 I use a local Dovecot IMAP server to store all my emails, which I
 access from either Claws-Mail or Evolution. On 7/7/2025 my email
 stopped working, a few hours of troubleshooting led to a Dovecot
 problem, a few more hours led to the 2.3 to 2.4 config file changes,
 and the next 3 days I went without email while trying to get a working
 2.4. Finally I managed to downgrade back to 2.3.x and restore the
 config from backup, and didn't lose too many emails.

 I've waited 6 months for all the dust to settle, and now I'm going to
 try to make a test VM (Void Linux) with 2.4.x, using phony baloney data
 because I don't want to lose my email capabilities again.

 So my first question is this: Is there a lint utility for my
 configuration, so that I can cut down on experimenting with 50
 different variables at once and reading conflicting documentation?
 Here's what I know so far about lint utilities:

 * I know doveconf -n and dovecot -n dump non-default settings, but I
 don't think they can detect syntax errors.

 * dovecot-sysreport doesn't seem to give me info about syntax errors.

 * None of the doveadm commands seem to check syntax.

 Thanks,

 SteveT

 Steve Litt
 [2]http://444domains.com
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Hi!

You could use doveconf -c /path. Also we provide [5]https://dovecot.org/upgrader

Aki

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