Hi I'v got an "Sending error. Check your mail settings." during sending a mailing. I increased the log level of sendmail to see what happens. This is what I found in the maillog
Feb 22 18:22:37 cl-1041 sendmail[21103]: NOQUEUE: connect from localhost [127.0.0.1]
Feb 22 18:22:37 cl-1041 sendmail[21103]: AUTH: available mech=PLAIN CRAM-MD5 LOGIN DIGEST-MD5 ANONYMOUS, allowed mech=EXTERNAL GSSAPI KERBEROS_V4 DIGEST-MD5 CRAM-MD5
Feb 22 18:22:37 cl-1041 sendmail[21103]: l1MHMb4r021103: Milter: no active filter
Feb 22 18:22:37 cl-1041 sendmail[21103]: l1MHMb4r021103: --- 220 myserver.mydomain.ch ESMTP Sendmail 8.13.7/8.13.4; Thu, 22 Feb 2007 18:22:37 +0100
Feb 22 18:22:37 cl-1041 sendmail[21103]: l1MHMb4r021103: <-- EHLO localhost
Feb 22 18:22:37 cl-1041 sendmail[21103]: l1MHMb4r021103: --- 250-myserver.mydomain.ch Hello localhost [127.0.0.1], pleased to meet you
Feb 22 18:22:37 cl-1041 sendmail[21103]: l1MHMb4r021103: --- 250-ENHANCEDSTATUSCODES
Feb 22 18:22:37 cl-1041 sendmail[21103]: l1MHMb4r021103: --- 250-PIPELINING
Feb 22 18:22:37 cl-1041 sendmail[21103]: l1MHMb4r021103: --- 250-8BITMIME
Feb 22 18:22:37 cl-1041 sendmail[21103]: l1MHMb4r021103: --- 250-SIZE
Feb 22 18:22:37 cl-1041 sendmail[21103]: l1MHMb4r021103: --- 250-DSN
Feb 22 18:22:37 cl-1041 sendmail[21103]: l1MHMb4r021103: --- 250-ETRN
Feb 22 18:22:37 cl-1041 sendmail[21103]: l1MHMb4r021103: --- 250-AUTH DIGEST-MD5 CRAM-MD5
Feb 22 18:22:37 cl-1041 sendmail[21103]: l1MHMb4r021103: --- 250-DELIVERBY
Feb 22 18:22:37 cl-1041 sendmail[21103]: l1MHMb4r021103: --- 250 HELP
Feb 22 18:22:37 cl-1041 sendmail[21103]: l1MHMb4r021103: <-- NOOP
Feb 22 18:22:37 cl-1041 sendmail[21103]: l1MHMb4r021103: --- 250 2.0.0 OK
Feb 22 18:22:37 cl-1041 sendmail[21103]: l1MHMb4r021103: <-- MAIL FROM: <list>
Feb 22 18:22:37 cl-1041 sendmail[21103]: l1MHMb4r021103: --- 250 2.1.0 <list>... Sender ok
Feb 22 18:22:37 cl-1041 sendmail[21103]: l1MHMb4r021103: <-- RCPT TO: <info>
Feb 22 18:23:51 cl-1041 sendmail[21103]: l1MHMb4r021103: --- 451 hrc-telecom.ch: Name server timeout
Feb 22 18:23:51 cl-1041 sendmail[21103]: l1MHMb4r021103: --- 050 <info>... Transient parse error -- message queued for future delivery
Feb 22 18:23:51 cl-1041 sendmail[21103]: l1MHMb4r021103: --- 451 hrc-telecom.ch: Name server timeout
Feb 22 18:23:51 cl-1041 sendmail[21103]: l1MHMb4r021103: --- 250 2.1.5 <info>... Recipient ok (will queue)
Feb 22 18:23:51 cl-1041 sendmail[21103]: l1MHMb4r021103: --- 421 4.4.1 myserver.mydomain.ch Lost input channel from localhost [127.0.0.1]
Feb 22 18:23:51 cl-1041 sendmail[21103]: l1MHMb4r021103: lost input channel from localhost [127.0.0.1] to MTA after rcpt
Feb 22 18:23:51 cl-1041 sendmail[21103]: l1MHMb4r021103: from=<list>, size=0, class=0, nrcpts=1, proto=ESMTP, daemon=MTA, relay=localhost [127.0.0.1]
After that the mailing stops. My interpretation: This is due to the error 451 or 421 4.4.1. I already read in this forum that I have to remove the first line in lm_sendq to make it possible to resume my mailing.
What I'm asking me: Is it really a good idea that one single E-Mail-address with a timeout error can stop the whole mailing? Shouldn't there be a fallback to automatically disable "corrupt" adresses and to continue the mailing automatically?
Best regards
Ralph