Hi, I have sendmail configured on a CentOS linux machine using scalix and I am finding alot of the following error messages in the mailq: -> Deferred: ntvirus3.mitts.net.: No route to host -> Transient parse error -- message queued for future delivery -> Deferred: Connection timed out with peakings.com. Can someone please explain to me what these errors mean? And how can I resolve them (if any)? Thanks in anticipation for your help.
Do you use working DNS servers in /etc/resolv.conf? What's the output of Code: ping -c4 google.com ? Any errors in your mail log?
This result is as follows: [root@mail mail]# ping -c4 google.com PING google.com (209.85.129.99) 56(84) bytes of data. 64 bytes from fk-in-f99.1e100.net (209.85.129.99): icmp_seq=1 ttl=55 time=78.2 ms 64 bytes from fk-in-f99.1e100.net (209.85.129.99): icmp_seq=2 ttl=55 time=78.9 ms 64 bytes from fk-in-f99.1e100.net (209.85.129.99): icmp_seq=3 ttl=55 time=84.4 ms 64 bytes from fk-in-f99.1e100.net (209.85.129.99): icmp_seq=4 ttl=55 time=78.4 ms --- google.com ping statistics --- 4 packets transmitted, 4 received, 0% packet loss, time 2999ms rtt min/avg/max/mdev = 78.247/79.995/84.410/2.560 ms Yes the dns in /etc/resolv.conf are good because I can send emails to other addresses. I have added temporary entries in /etc/hosts but this is not that good since if the IP for the domain changes, it would fail again. Do you have any suggestions what can I do please? Thanks in advanced.
Yes it seems to work (or at least they are not in the mailq) after I've done this change, but I think there is a better solution for this that I don't know about it. As you definitely know this is not a guaranteed solution. What do you think please?
Then there seems to be a problem with your nameservers in /etc/resolv.conf. Can you add Code: nameserver 8.8.8.8 (Google nameserver) as the first line in /etc/resolv.conf and see if it works then (without the changes in /etc/hosts)?
