[Dovecot] Dovecot accepts squirrelmail, rejects fetchmail

[M. Fioretti]

On Sat, Sep 30, 2006 21:26:04 PM +0200, io (mfioretti at mclink.it)
wrote:

> Sep 30 15:05:05 fm dovecot: auth(default): passwd-file(user_name,::ffff:CLIENT_IP_HERE): unknown user
> Sep 30 15:05:07 fm dovecot: auth(default): client out: FAIL     1       user=user_name
> Sep 30 15:05:07 fm dovecot: imap-login: Aborted login: user=<user_name>, method=PLAIN, rip=::ffff:CLIENT_IP_HERE,
> +lip=::ffff:SERVER_IP_HERE, TLS
> 
> Remember that when the same user name and password come from
> Squirrelmail on the same host where dovecot runs, everything works.
>
> Why does it fail with fetchmail? what does that message "unknown
> user" exactly mean?

More exactly: what is in Dovecot configuration that makes it recognize
an user from squirrelmail and call it unknown when it calls through
fetchmail?

TIA,
	Marco