[Dovecot] login BAD Error in IMAP command received by server.

[Oliver Eales]

Am 03.11.2009 um 23:31 schrieb Yaron B:

> thanks,
>
> but now im getting something else :-)
>
> less /var/log/maillog
>
> Nov  4 00:00:01 localhost postfix/smtp[9346]: A56FE19138:
> to=<root at localhost.localdomain>, relay=none, delay=0.01,  
> delays=0/0/0.01/0,
> dsn=5.4.4, status=bounced (Host or domain name not found. Name  
> service error
> for name=localhost.localdomain type=AAAA: Host not found)
> Nov  4 00:00:01 localhost postfix/qmgr[3061]: A56FE19138: removed

This has nothing to do with dovecot, but with your postfix  
configuration.
Try reading something about postfix configuration and hosts/domains in  
general:

for instance an old posting: http://lists.debian.org/debian-user/2003/05/msg00579.html

regards,
oliver