sendmail error 67 when sending mail to a list on our mail host

Hi all.
Background information:
We're running Fedora 17 Linux on a network of Intel machines.
The mail spool /var/spool/mail is on our mailhost dsm.dsm.fordham.edu; said mail spool is NFS-mounted (via autofs, the RPM being autofs-5.0.6-23.fc17.x86_64) by all the other Linux boxes in our network.
Our MTA is sendmail (provided by the sendmail-8.14.5-14.fc17.x86_64 RPM). On the mailhost dsm.dsm.fordham.edu, the file /etc/mail/local-host-names contains the lines dsm.dsm.fordham.edu dsm.fordham.edu (among others). Moreover, we have sobolev@dsm:~$ nslookup -query=mx dsm.fordham.edu Server: 150.108.4.11 Address: 150.108.4.11#53 dsm.fordham.edu mail exchanger = 10 dsm.dsm.fordham.edu. Thus mail going to bovik@dsm.fordham.edu will really go to bovik@dsm.dsm.fordham.edu.
Mailman (provided by the mailman-2.1.14-13.fc17.x86_64 RPM) runs on the mail host dsm.dsm.fordham.edu.
"test" is a mailman list, which I use for testing purposes. I am a member of the test list.
The problem:
The following problem just started happening today.
If I am logged in on dsm.dsm.fordham.edu, I can send mail to (say) test or to test@dsm.fordham.edu.
If I am logged in on any other host on the network, I can send mail to test@dsm.dsm.fordham.edu. HOWEVER, if I send mail to test@dsm.fordham.edu, mail bounces. If I use the command-line "mail" client (with the verbose option), I get 550 5.1.1 <test@dsm.fordham.edu>... User unknown If I use emacs VM, I get Debugger entered--Lisp error: (error "Sending...failed with exit value 67") signal(error ("Sending...failed with exit value 67")) error("Sending...failed with exit value %d" 67) sendmail-send-it() mail-send() vm-mail-send() vm-mail-send-and-exit(nil) call-interactively(vm-mail-send-and-exit nil nil)
If any of you have any insight about this problem, please let me know.
Many thanks.
Art Werschulz (8-{)} "Metaphors be with you." -- bumper sticker GCS/M (GAT): d? -p+ c++ l++ u+ P++ e--- m* s n+ h f g+ w+ t+ r- Net: agw@dsm.fordham.edu http://www.dsm.fordham.edu/~agw Phone: Fordham U. (212) 636-6325, Columbia U. (646) 775-6035

Art Werschulz wrote:
Not really. Mail to bovik@dsm.fordham.edu will be routed to the MX at dsm.dsm.fordham.edu, but the envelope will still be to bovik@dsm.fordham.edu.
And what changed between yesterday and today in the sendmail configuration on dsm.dsm.fordham.edu or elsewhere in your network?
This is really a sendmail question. It is a bit puzzling because if you are sending from dsm.dsm.fordham.edu, the MTA apparently knows how to deliver to test@dsm.fordham.edu, but if you are sending from another machine in your network, delivery fails.
Note however that I just sent a test message to test-request@dsm.fordham.edu, and it was delivered via dsm.dsm.fordham.edu, and Mailman replied. Thus, my best guess, assuming it still doesn't work for you, is that for some reason, other machines on your network don't relay mail to test@dsm.fordham.edu via dsm.dsm.fordham.edu.
-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan

Art Werschulz wrote:
Not really. Mail to bovik@dsm.fordham.edu will be routed to the MX at dsm.dsm.fordham.edu, but the envelope will still be to bovik@dsm.fordham.edu.
And what changed between yesterday and today in the sendmail configuration on dsm.dsm.fordham.edu or elsewhere in your network?
This is really a sendmail question. It is a bit puzzling because if you are sending from dsm.dsm.fordham.edu, the MTA apparently knows how to deliver to test@dsm.fordham.edu, but if you are sending from another machine in your network, delivery fails.
Note however that I just sent a test message to test-request@dsm.fordham.edu, and it was delivered via dsm.dsm.fordham.edu, and Mailman replied. Thus, my best guess, assuming it still doesn't work for you, is that for some reason, other machines on your network don't relay mail to test@dsm.fordham.edu via dsm.dsm.fordham.edu.
-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan
participants (2)
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Art Werschulz
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Mark Sapiro