Hello Dear Friends,
Its been few days back i have install ZCS 7.2.5 on centos 6.4. Installation went smoothly, emails to local domain, gmail and hotmail fine but when we send email to yahoo its going Deferred.
while checking the logs i am getting this error:
# tail -f /var/log/zimbra.log
Oct 9 22:33:04 mail postfix/smtp: D2B051148293: to=<firstname.lastname@example.org>, relay=none, delay=150, delays=0.01/0.01/150/0, dsn=4.4.1, status=deferred (connect to mta7.am0.yahoodns.net[188.8.131.52]:25: Connection timed out)
Your help will be highly appreciated in this matter.