The following problem started happening on March 24 and it has not stopped since. every 30 seconds somebody does the following:
Mar 24 10:43:38 XXXXXX postfix/smtpd[5905]: connect from localhost.localdomain[127.0.0.1] Mar 24 10:43:38 XXXXXX postfix/smtpd[5905]: NOQUEUE: reject: MAIL from localhost.localdomain[127.0.0.1]: 552 5.3.4 Message size exceeds fixed limit; proto=ESMTP helo=<AAAAAAAA.AAAAAAAA.org> Mar 24 10:43:38 XXXXXX postfix/smtpd[5900]: connect from localhost.localdomain[127.0.0.1] Mar 24 10:43:38 XXXXXX postfix/smtpd[5900]: 0DFC2E2F2D: client=localhost.localdomain[127.0.0.1] Mar 24 10:43:38 XXXXXX postfix/cleanup[5903]: 0DFC2E2F2D: message-id=<20110324144338.0dfc2e2...@aaaaaaaa.aaaaaaaa.org> Mar 24 10:43:38 XXXXXX postfix/qmgr[2169]: 0DFC2E2F2D: from=<>, size=3863, nrcpt=1 (queue active) Mar 24 10:43:38 XXXXXX postfix/smtpd[5900]: disconnect from localhost.localdomain[127.0.0.1] Mar 24 10:43:38 XXXXXX postfix/smtpd[5905]: disconnect from localhost.localdomain[127.0.0.1] Mar 24 10:43:39 XXXXXX postfix/smtp[5906]: 0DFC2E2F2D: to=<aaaa.a...@aa.com>, relay=outgoing.verizon.net[206.46.232.12]:587, delay=1, delays=0.12/0/0.43/0.49, dsn=2.5.0, status=sent (250 2.5.0 Ok, envelope id 0lik00kfegwqx...@vms173013.mailsrvcs.net) Mar 24 10:43:39 XXXXXX postfix/qmgr[2169]: 0DFC2E2F2D: removed This was sent from home using my ISP's relay, but the same thing happens from work (with a different relay). AFAICT, there is no state in /var/spool/postfix or /etc/postfix that would cause this to persist across reboots, but it does, so I must be wrong. I just want to stop this. How do I tell postfix not to bother any more? Thanks in advance for any help, Nick