Having a weird milter timeout on my server as well. Mail flows fine then for no apparent reason, the milters start timing out. Sendmail reaches MaxDaemon (currently 250) and starts rejecting connections. Even after that, mimedefang never seems to recover. Restarting sendmail and mimedefang fixes it. This has been happening once every day or two.
Right now i'm looking for ideas on where to troubleshoot next. I tried upping MaxDaemon to 500 and 1000 but the problem still occurs. I've increased milter timeouts to F=T, T=S:5m;R:5m;E:10m. Trying to determine if this is a sendmail or a MD (or spamassassing or clamav) problem. Is sendmail reaching MaxDaemon because the milters start backing up, or vice versa? I tried turning on mimedefang debugging, but the load was too great and the system couldn't keep up. Any other ideas? ray Jan 31 20:51:03 norm sm-mta[27815]: i112jv3O027815: Milter (mimedefang): timeout before data read Jan 31 20:51:03 norm sm-mta[27815]: i112jv3O027815: Milter (mimedefang): to error state Jan 31 20:51:03 norm sm-mta[27815]: i112jv3O027815: Milter: data, reject=451 4.7.1 Please try again later Jan 31 20:51:03 norm sm-mta[27815]: i112jv3O027815: [EMAIL PROTECTED], delay=00:05:04, pri=30313, stat=Please try again later Jan 31 20:51:04 norm sm-mta[28251]: i112k43N028251: Milter (mimedefang): timeout before data read Jan 31 20:51:04 norm sm-mta[28251]: i112k43N028251: Milter (mimedefang): to error state Jan 31 20:51:04 norm sm-mta[28251]: i112k43N028251: Milter (mimedefang): init failed to open Jan 31 20:51:04 norm sm-mta[28251]: i112k43N028251: Milter (mimedefang): to error state Jan 31 20:51:04 norm sm-mta[28251]: i112k43N028251: Milter: initialization failed, temp failing commands Jan 31 20:51:04 norm sm-mta[28251]: i112k43N028251: 12-215-185-211.client.mchsi.com [12.215.185.211] did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA Jan 31 20:51:05 norm sm-mta[3100]: rejecting connections on daemon MTA: 250 children, max 250 Jan 31 20:51:05 norm sendmail[12687]: i0VBUTU7019879: to=<[EMAIL PROTECTED]>, delay=15:20:36, xdelay=00:00:22, mailer=esmtp, pri=3725131, relay=mail.polarwax.com. [211.167.73.20], dsn=4.0.0, stat=Deferred: Connection refused by mail.polarwax.com. Jan 31 20:51:05 norm sm-mta[28253]: i112k53N028253: Milter (mimedefang): timeout before data read Jan 31 20:51:05 norm sm-mta[28253]: i112k53N028253: Milter (mimedefang): to error state Jan 31 20:51:05 norm sm-mta[28253]: i112k53N028253: Milter (mimedefang): init failed to open Jan 31 20:51:05 norm sm-mta[28253]: i112k53N028253: Milter (mimedefang): to error state Jan 31 20:51:05 norm sm-mta[28253]: i112k53N028253: Milter: initialization failed, temp failing commands Jan 31 20:51:05 norm sm-mta[28253]: i112k53N028253: mta13.classmates.com [65.243.133.33] did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA Jan 31 20:51:06 norm sm-mta[28254]: i112k63N028254: Milter (mimedefang): timeout before data read Jan 31 20:51:06 norm sm-mta[28254]: i112k63N028254: Milter (mimedefang): to error state Jan 31 20:51:06 norm sm-mta[28254]: i112k63N028254: Milter (mimedefang): init failed to open Jan 31 20:51:06 norm sm-mta[28254]: i112k63N028254: Milter (mimedefang): to error state Jan 31 20:51:06 norm sm-mta[28254]: i112k63N028254: Milter: initialization failed, temp failing commands Jan 31 20:51:06 norm sm-mta[28254]: i112k63N028254: 08.opn08.com [69.6.27.127] did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA _______________________________________________ Visit http://www.mimedefang.org and http://www.canit.ca MIMEDefang mailing list [EMAIL PROTECTED] http://lists.roaringpenguin.com/mailman/listinfo/mimedefang