[Dovecot] passwd-file - lower limit for username?

[Timo Sirainen]

On Tue, 2012-02-21 at 17:33 +0800, Oon-Ee Ng wrote:
> Hi, previously I could use the following in my passwd-file:-
> 
> AB:{plain}password
> 
> I'm not sure when it stopped working, its not an account I access with
> any regularity, but today it would not work (2.1.0, 64-bit Arch
> Linux), with an 'unknown user' error in the logs. 

Dovecot doesn't think the user exists. auth_debug=yes may be helpful,
and doveconf -n output.

> Is there some new lower limit for username length?

No.