Hello everyone,
I hope I posted in the right newsgroup. I have an odd problem I can't
figure out how to fix with a server running SBS 2000, specifically
with the SMTP service. Since a couple of day ago, there seems to be an
issue with sending emails to a specific domain (a week ago sending e-
mails to that domain worked fine). The problem is that the e-mails
stay in the SMTP queue with "Queued" status, there's no failed
delivery notification for the e-mails and I can't find any errors or
reasons why the mail isn't being sent in any log files. As far as
sending mail to other domains/addresses go, everything seems to be
working fine.
I already deleted the e-mails from the queue and asked the senders to
resend them and the results are the same. The mail gets delivered
locally, but doesn't go out to the other recipients, and it happens
just for this one domain.
The message tracking log for the e-mails in question are awalys the
same:
28.1.2008 21:45 SMTP Store Driver: Message Submitted from Store
28.1.2008 21:45 SMTP: Message Submitted to Advance Queuing
28.1.2008 21:45 SMTP: Started Message Submission to Advance Queue
28.1.2008 21:45 SMTP: Message Submitted to Categorizer
28.1.2008 21:45 SMTP: Message Delivered Locally to
outgoingmail@[EMAIL PROTECTED]
21:45 SMTP Store Driver: Message Delivered Locally to Store
to outgoingmail@[EMAIL PROTECTED]
have journaling turned on for all outgoing mail, that's why it gets
delivered to that e-mail (don't mind the fake domain). But it never
gets delivered outside to it's final recipient.
I have checked the SMTP log files (found in %systenroot%
\system32\logfiles\SMTPSVC1\) and there is no logged connection being
made to the responsible MX server for the domain in question.
The DNS resolving seems to be working fine, I can get the MX record
with nslookup and I can get the IP of the MX record. The responsible
SMTP server is accepting connections (I connected to it via telnet to
****t 25 from the SBS server and tried it out). I have also tried
sending a test e-mail to the recipient domain from a Google Mail
account and from my home e-mail server and in both cases the e-mail
was delivered correctly.
Running smtpdiag.exe from the SBS server gives different results. Time
to time the test p*****, but sometimes smtpdiag re****ts it can't
connect to the responsible MX server. The odd thing is that at those
times (when it fails) I can still successfully establish a telnet
connection to the MX server (and get responses back from it).
EventLog shows no errors either.
Anybody have any other ideas what to try?
Thanks for your answers in advance,
Amadej.
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