I have deployed a postfix server for email receiving. On this I have configured SenderID + SPF milter, by referring to http://www.postfix.org/MILTER_README.html
The command that I used is as follows:
./sid-filter -u postfix -p inet:10027@... -l
Following are my settings in main.cf file:
#Milter support for smtpd mail
# Milters for non-SMTP mail.
milter_default_action = reject
# Postfix . 2.6
#milter_protocol = 6
# 2.3 . Postfix . 2.5
milter_protocol = 2
Now I have this observation:
1. One of the postfix that is setup on AWS CentOS 5.5 is working fine and is able to receive mails on defined mx record.
2. One of the similar postfix(as in step 1) that is setup behind one of the corporate firewalls is not able to receive any mails and is giving following type of error logs:
connect from g2t0444g.austin.hp.com[18.104.22.168]
May 25 13:20:02 g2t0385g postfix/smtpd: C11F9B0194: client=g2t0444g.austin.hp.com[22.214.171.124]
May 25 13:20:03 g2t0385g postfix/cleanup: C11F9B0194: message-id=<AANLkTincPyhJBxcLaF1ReI7rSsZvHWXvh0qaEJuwdm10@...>
May 25 13:20:03 g2t0385g postfix/cleanup: C11F9B0194: milter-reject: END-OF-MESSAGE from g2t0444g.austin.hp.com[126.96.36.199]: 5.7.1 Command rejected; from=<ashiish.sharma@...> to=<9253aphi82iry@...> proto=ESMTP helo=<ey-out-1920.google.com>
Here the 'sid-filter' is giving problems.
Any idea, what I am doing wrong?