Dear Friend, I have postfix mail server. I open my mail server and put my username = jha and password= 123456 it is giving my error "*ERROR*Unknown user or password incorrect." and In a log it is showing -- Sep 20 13:03:22 neumann dovecot: imap-login: Aborted login (auth failed, 1 attempts): user=<jha>, method=PLAIN, rip=10.112.1.2, lip=192.168.1.2, secured but When I put username = jha at XXX.ac.in so it is allow me to login in mail server . Why it is taking full Domain Name . I want like gmail and yahoo when we open it they just ask for username and password not full domain name. Please help me.. Thanks & Regards Jitendra Jha +91-7498370550