auth-worker unknown user

[Aki Tuomi]

> On 11 April 2019 17:56 Laura Smith via dovecot <dovecot at dovecot.org> wrote:
> 
>  
> On Thursday, April 11, 2019 3:07 PM, Aki Tuomi <aki.tuomi at open-xchange.com> wrote:
> 
> > > On 11 April 2019 16:45 Laura Smith via dovecot < dovecot at dovecot.org> wrote:
> > >
> > > On Thursday, April 11, 2019 2:02 PM, Aki Tuomi < aki.tuomi at open-xchange.com> wrote:
> > >
> > > > PAM is trying to lookup user at domain while you probably only have user. PAM driver does not yet support username_format. 
> > >
> > > > Aki
> > >
> > > But /etc/dovecot/users file isn't pam ?   I don't need pam if if I'm using /etc/dovecot/users ?  Or am I understanding you wrong?
> >
> > you have passdb block using pam. it is involved in the lookup process. 
> >
> > ---
> > Aki Tuomi
> 
> > doveconf -n passdb userdb
> passdb {
>   args = scheme=ARGON2ID username_format=%u /etc/dovecot/users
>   auth_verbose = yes
>   driver = passwd-file
> }
> userdb {
>   args = scheme=ARGON2ID username_format=%u /etc/dovecot/users
>   auth_verbose = yes
>   driver = passwd-file
> }

Looks OK now. PAM is quite often the culprit as it's part of the default shipped config and can be often missed when setting things up.

Aki