ZhangHuangbin wrote:Check related log in /var/log/maillog, /var/log/dovecot.log.
maillog:
Oct 7 04:17:10 mail postfix/qmgr[2348]: EF499200C3B: from=<nate@digitalnuage.com>, size=1026, nrcpt=1 (queue active)
Oct 7 04:17:41 mail postfix/smtp[22963]: connect to gmail-smtp-in.l.google.com[173.194.77.27]:25: Connection timed out
Oct 7 04:18:11 mail postfix/smtp[22963]: connect to alt1.gmail-smtp-in.l.google.com[74.125.134.27]:25: Connection timed out
Oct 7 04:18:41 mail postfix/smtp[22963]: connect to alt2.gmail-smtp-in.l.google.com[173.194.68.26]:25: Connection timed out
Oct 7 04:19:11 mail postfix/smtp[22963]: connect to alt3.gmail-smtp-in.l.google.com[173.194.73.26]:25: Connection timed out
Oct 7 04:19:41 mail postfix/smtp[22963]: connect to alt4.gmail-smtp-in.l.google.com[173.194.78.26]:25: Connection timed out
Oct 7 04:19:41 mail postfix/smtp[22963]: EF499200C3B: to=<nate.baker1988@gmail.com>, relay=none, delay=40594, delays=40444/0.07/150/0, dsn=4.4.1, status=deferred (connect to alt4.gmail-smtp-in.l.google.com[173.194.78.26]:25: Connection timed out)
Oct 7 04:43:13 mail amavis[23479]: starting. /usr/sbin/amavisd at mail.digitalnuage.com amavisd-new-2.6.6 (20110518), Unicode aware, LANG="en_US.UTF-8"
dovecot:
Oct 07 03:20:06 imap-login: Info: Login: user=<nate@digitalnuage.com>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=21835, secured
Oct 07 03:20:06 imap(nate@digitalnuage.com): Info: Disconnected: Logged out bytes=312/1681
Oct 07 03:21:06 imap-login: Info: Login: user=<nate@digitalnuage.com>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=21853, secured
Oct 07 03:21:06 imap(nate@digitalnuage.com): Info: Disconnected: Logged out bytes=312/1681
Oct 07 03:22:06 imap-login: Info: Login: user=<nate@digitalnuage.com>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=21871, secured
Oct 07 03:22:06 imap(nate@digitalnuage.com): Info: Disconnected: Logged out bytes=312/1681