Sendmail: Deferred: Name server: xxx.xxx.xxx: host name lo..

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Sendmail: Deferred: Name server: xxx.xxx.xxx: host name lo..

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Bas Hendriks

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Since: Jul 17, 2006
Posts: 1

(Msg. 1) Posted: Mon Jul 17, 2006 10:33 pm Post subject: Sendmail: Deferred: Name server: xxx.xxx.xxx: host name lookup Archived from groups: mailing>freebsd>isp (more info?)

Hello, I have a problem with one of my servers, Suddenly i am getting a lot of "Deferred: Name server: xxx.xxx.xxx: host name lookup failure" while DNS resolving on that box is ok(from the command line de backend servers do resolve and are reachable). The mail stays in the mailqueue. This is a mailscanning server (Mailscanner/Spamassasin/Clamav), witch functions as primary mx for several domains, after receiving mail it forwards this mail to backend servers(Using mailertable: domain.com smtp:backendserver-n.xxxx.xx). Any pointers on how to debug this would be appreciated! Best regards, Bas Hendriks -- extra info: [bas@mailscanner bas]$uname -a FreeBSD mailscanner.xxxxxx.xxx 6.0-RELEASE FreeBSD 6.0-RELEASE #0: Thu Nov 3 09:36:13 UTC 2005 root.TakeThisOut@x64.samsco.home:/usr/obj/usr/src/sys/GENERIC i386 [bas@mailscanner bas]$telnet 0 25 Trying 0.0.0.0... Connected to 0. Escape character is '^]'. 220 mailscanner.xxxxxx.xxx ESMTP Sendmail 8.13.4/8.13.4; Mon, 17 Jul 2006 16:19:58 +0200 (CEST) _______________________________________________ freebsd-isp.TakeThisOut@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-isp To unsubscribe, send any mail to "freebsd-isp-unsubscribe@freebsd.org" >> Stay informed about: Sendmail: Deferred: Name server: xxx.xxx.xxx: host name lo..

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