Sounds like you have set something like this in main.cf anvil_rate_time_unit = 1800s smtpd_client_connection_rate_limit = 50
this means "a maximum of 50 connection per half a hour from the same ip" my example 50/18000 is from our live configuration on postfix-servers as well our barracuda-spamfirewall and is really a good setting because sometimes over weeks nobody reaches this limit if it is reached there is surely a spammer delivering his crap and postfix will reject temporary connections from the ip a normal server will try later, a spammer will give up sooner or later Am 06.03.2011 13:15, schrieb JKL: > > Dear all, > > ** QUESTION 1 > I just noticed this message appearing the log files (mail.log). I > read a little on the page http://www.postfix.org/QSHAPE_README.html, but > did not quite understand where my postfix problem lied. The queues are > very quiet presently. This mail server does not have a lot of throughput. > > --------------------- Postfix Begin ------------------------ > > 2105 *Warning: Connection rate limit reached (anvil) > 4 Miscellaneous warnings > > 666.166K Bytes accepted 682,154 > 128.576K Bytes sent via SMTP 131,662 > 634.608K Bytes delivered 649,839 > ======== ================================================== > > 55 Accepted 20.15% > 218 Rejected 79.85% > -------- -------------------------------------------------- > 273 Total 100.00% > ======== ================================================== > > 1 5xx Reject relay denied 0.46% > 1 5xx Reject HELO/EHLO 0.46% > 100 5xx Reject unknown user 45.87% > 106 5xx Reject RBL 48.62% > 2 5xx Reject header 0.92% > 8 5xx Reject milter 3.67% > -------- -------------------------------------------------- > 218 Total 5xx Rejects 100.00% > ======== ================================================== > > 7 4xx Reject milter 100.00% > -------- -------------------------------------------------- > 7 Total 4xx Rejects 100.00% > ======== ================================================== > > 2406 Connections > 158 Connections lost (inbound) > 2406 Disconnections > 36 Removed from queue > 32 Delivered > 13 Sent via SMTP > > 5 Timeouts (inbound) > 1 Illegal address syntax in SMTP command > 47 Hostname verification errors > 18 TLS connections (server) > 6 SASL authenticated messages > > > ---------------------- Postfix End ------------------------- > > > ** QUESTION 2 > On an additional note a milter is rejecting these messages (about 40 each > day). I am uncertain which milter is rejecting it from the message. Does > anyone know how I can identify the milter: > > Mar 6 12:04:17 logout postfix/cleanup[18037]: D6861848C7: milter-reject: > END-OF-MESSAGE from smtp143.junkemailfilter.com[69.50.231.143]: 4.7.1 Service > unavailable - try again later; from=<remo...@removed.org> > to=<remo...@klunky.co.uk> proto=ESMTP helo=<junkemailfilter.com> > > > Any one, any ideas? Perhaps, which is likly there is some misconfiguration. > > Best regards, s. -- Mit besten Grüßen, Reindl Harald the lounge interactive design GmbH A-1060 Vienna, Hofmühlgasse 17 CTO / software-development / cms-solutions p: +43 (1) 595 3999 33, m: +43 (676) 40 221 40 icq: 154546673, http://www.thelounge.net/
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