Hi, I have SpamAssassin integrated on my postfix mail server via 'Amavisd-new'.
The problem that I am facing is that I am receiving same email every 15 second from same sender with same message-ID on my production mail servers, following are my postfix logs: "Oct 25 01:11:02 g2t0433g postfix/smtpd[6497]: connect from webmail.warwick.net[204.255.24.104] Oct 25 01:11:02 g2t0433g postfix/smtpd[6497]: 2EAAF23004C: client=webmail.warwick.net[204.255.24.104] Oct 25 01:11:02 g2t0433g postfix/cleanup[6579]: 2EAAF23004C: message-id=<ce130ed7-d498-4461-b076-e3b8ab55b...@warwick.net> Oct 25 01:11:02 g2t0433g opendkim[17677]: (unknown-jobid): webmail.warwick.net [204.255.24.104] not internal Oct 25 01:11:02 g2t0433g opendkim[17677]: (unknown-jobid): not authenticated Oct 25 01:11:02 g2t0433g opendkim[17677]: (unknown-jobid): no signing domain match for `warwick.net' Oct 25 01:11:02 g2t0433g opendkim[17677]: (unknown-jobid): no signing subdomain match for `warwick.net' Oct 25 01:11:02 g2t0433g postfix/qmgr[17833]: 2EAAF23004C: from=<pet...@warwick.net>, size=1987, nrcpt=1 (queue active) Oct 25 01:11:02 g2t0433g postfix/smtpd[6497]: disconnect from webmail.warwick.net[204.255.24.104] Oct 25 01:11:03 g2t0433g amavis[6492]: (06492-09) Passed CLEAN, [204.255.24.104] [204.255.24.104] <pet...@warwick.net> -> <775eejom36...@xxx.com>, Message-ID: <ce130ed7-d498-4461-b076-e3b8ab55b...@warwick.net>, mail_id: rJ8M8oQHBzWt, Hits: 1.104, size: 2234, queued_as: 250 Ok, 946 ms Oct 25 01:11:03 g2t0433g postfix/lmtp[6585]: 2EAAF23004C: to=<775eejom36...@xxx.com>, relay=127.0.0.1[127.0.0.1]:10024, delay=1.6, delays=0.6/0/0.01/0.95, dsn=2.6.0, status=sent (250 2.6.0 Ok, id=06492-09, from MTA([127.0.0.1]:10030): 250 Ok) Oct 25 01:11:03 g2t0433g postfix/qmgr[17833]: 2EAAF23004C: removed" How to determine that such mail is genuine or SPAM? Is there any rule on spamassassin that I can set that will discard such mails? Right now I have added 'pet...@warwick.net' in my postfix 'main.cf' restriction list as follows: smtpd_recipient_restrictions = check_sender_access hash:/etc/postfix/senderRestrictionList, reject_unauth_destination, reject_rbl_client zen.spamhaus.org, reject_rbl_client bl.spamcop.net permit Is it the right approach? Please help Thanks in advance Ashish Sharma
