I have started getting a lot of these messages over the last few days in my mail logs. These messages refer to legitimate addresses eg:
Mar 17 08:59:10 debian sm-mta[29154]: n2GLwjk7029154: ruleset=check_mail, arg1=<xxxxxxx...@act.gov.au>, relay=dmz017.dpa.act.gov.au [136.153.14.117], reject=451 4.1.8 Domain of sender address xxxxx...@act.gov.au does not resolve Mar 17 09:16:50 debian sm-mta[29224]: n2GMGPd8029224: ruleset=check_mail, arg1=<xxxxx...@gsahs.health.nsw.gov.au>, relay=mail.gsahs.health.nsw.gov.au [202.59.31.130], reject=451 4.1.8 Domain of sender address xxxxx...@gsahs.health.nsw.gov.au does not resolve Mar 17 13:57:14 debian sm-mta[30575]: n2H2ullN030575: ruleset=check_mail, arg1=<n...@tigerairwaysnews.com>, relay=mail.tigerairwaysnews.com [202.172.235.34], reject=451 4.1.8 Domain of sender address n...@tigerairwaysnews.com does not resolve It appears that at least some of the messages are actually getting through - there have been no complaints from the staff (maybe they just don't know whether the messages should have been sent!) and I sent a test email from one of these domains which got through - despite an error message in the log with my username from that domain. I use a Netgear DG834 router which is set to get DNS settings automatically from my ISP. I'm running Lenny (recently upgraded from Etch), Sendmail-8.14.3-5 my /etc/resolv.conf domain XXXXXXX.net.au nameserver 192.168.0.1 192.168.0.1 is my router address NB: anything with XXXXXX is fictitious. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
