Hi, I'm trying to understand where this message is coming from. The IP resolves to a google address, and is blacklisted on sorbs and others, but postscreen also says it was whitelisted here.
I'm not directly rejecting this IP on my system and also don't see "Domain is spam" anywhere. Can someone help me understand how this IP is being rejected? Jan 22 05:51:11 mail03 postfix/postscreen[21814]: CONNECT from [209.85.216.174]:39727 to [68.195.123.45]:25 Jan 22 05:51:11 mail03 postfix/postscreen[21814]: WHITELISTED [209.85.216.174]:39727 Jan 22 05:51:11 mail03 postfix/smtpd[21852]: NOQUEUE: reject: RCPT from mail-qt0-f174.google.com[209.85.216.174]: 554 5.7.1 <em...@suhaskumar.com>: Sender address rejected: Domain is spam; from=<em...@suhaskumar.com> to=<serv...@example.com> proto=ESMTP helo=<mail-qt0-f174.google.com> Jan 22 05:51:11 mail03 postfix/smtpd[21852]: disconnect from mail-qt0-f174.google.com[209.85.216.174] ehlo=2 starttls=1 mail=1 rcpt=0/1 data=0/1 quit=1 commands=5/7 I have many other instances of having received mail from this IP without incident. Is it related to this domain? Below is my smtpd_sender_restrictions smtpd_sender_restrictions = permit_mynetworks, check_sender_access hash:/etc/postfix/sender_checks, check_sender_access pcre:/etc/postfix/sender_checks.pcre, check_sender_access hash:/etc/postfix/spamsources, check_sender_access hash:/etc/postfix/sender_access_wombat, check_sender_ns_access hash:/etc/postfix/blacklist_ns.cf, reject_unknown_sender_domain The spamsources file is a blacklist of domains like xyz with 500 and blacklist_ns.cf rejects name servers like fastpark.net andd sedoparking.com.
