7 Jun
                
                    2010
                
            
            
                7 Jun
                
                '10
                
            
            
            
        
    
                3:24 p.m.
            
        May 7 14:47:42 ttt dovecot: auth(default):
worker-server(uid,yyy.yyy.yyy.yyy): Aborted: Lookup timed out May 7 14:47:42 ttt dovecot: auth-worker(default): mysql: Connected to lll.lll.lll.lll (imapauth)"Lookup timed out" really shouldn't be happening.. That sounds like Dovecot's MySQL connections hangs after a while? You have some stateful firewall between Dovecot and MySQL that drops idling connections and afterwards starts dropping the connection's packets?
Indeed, there is a firewall with stateful inspection between Dovecot
and MySQL. The only workaround is a downgrade to Dovecot 1.1.20. I
think my problem has to do with the changes in
src/auth/auth-worker-server.c in changeset 8859.