I have dovecot installed on Ubuntu 12.04. I am using Ispconfig3 to manage the virtual users. I have been through the http://wiki2.dovecot.org/TestInstallation process and everything (except the ssl) works: I can log in using telnet and open the inbox. However when I connect with Evolution clent, I get [AUTHENTICATIONFAILED]. Feb 13 21:31:19 adrian dovecot: auth: Debug: auth client connected (pid=14001) Feb 13 21:31:24 adrian dovecot: auth: Debug: client in: AUTH#0111#011PLAIN#011service=imap#011lip=18.104.22.168#011rip=22.214.171.124#011lport=143#011rport=59085#011resp=AHRlc3QAMTIzNDU2 Feb 13 21:31:24 adrian dovecot: auth-worker: Debug: sql(test,126.96.36.199): query: SELECT password FROM mail_user WHERE login = 'test' AND disableimap = 'n'Feb 13 21:31:24 adrian dovecot: auth-worker: sql(test,188.8.131.52): unknown user Feb 13 21:31:26 adrian dovecot: auth: Debug: client out: FAIL#0111#011user=test Feb 13 21:32:00 adrian dovecot: imap-login: Aborted login (auth failed, 1 attempts): user=<test>, method=PLAIN, rip=184.108.40.206, lip=220.127.116.11 What could the issue be?