Uncheck DNS Cache
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of James P. Bednarz
Sent: Tuesday, February 17, 2004 2:59 PM
To: [EMAIL PROTECTED]
Subject: [IMail Forum] One domain will not receive our mail
Folks,
I hope you can help. This ones got me twisted in knots.
I have
Win 2k3 Server
IMAIL 8.05 hf1
DNS running on same box
Small office, 130 accounts.
I have had no problems with any other mail except for one domain.
This one domain 99% bounces back after 20 tries. About 1% of the time gets
through but usually after 16 to 18 tries.
Of course they say it's us, and we say it's them.
I have my server running behind a firewall NAT'd to a public address.
They can send mail to us with no problems. We cannot send to them.
>From my router outside my firewall, I can telnet into their smtp server
>and
any others. From mail server, I cannot telnet into this particular smtp
server. However I can telnet into any others (as many that allow that) By
this I conclude that port is not blocked in my firewall. Plus, that would
cause all mail to fail. No?
I can traceroute to it. DNS appears to resolve it correctly.
I am getting MX connect fail errors in my log for this address. Why only
this address? If I were having problems with dns wouldn't all of my mail get
returned? I checked the ip addresses in my registry and everything seems to
be in order.
Is it because I am running from behind the firewall rather than in the DMZ?
Again, if that were the case why would only 1 stinking e-mail get hung up?
Arrrrrgh. I am lost.
Here is some log for ya....
02:17 14:53 SMTPD(0020021E) [192.168.0.230] connect 192.168.0.142 port 4570
02:17 14:53 SMTPD(0020021E) [192.168.0.142] EHLO dionysis
02:17 14:53 SMTPD(0020021E) [192.168.0.142] MAIL FROM:
<[EMAIL PROTECTED]>
02:17 14:53 SMTPD(0020021E) [192.168.0.142] RCPT TO:
<[EMAIL PROTECTED]>
02:17 14:53 SMTPD(0020021E) [192.168.0.142]
C:\IMAIL\spool\D71510020021e2e7d.SMD 758
02:17 14:53 SMTP-(08A006A1) processing C:\IMAIL\spool\Q71510020021e2e7d.SMD
02:17 14:53 SMTP-(08A006A1) [x] looking up theirdomain.com in HOSTS and MX
02:17 14:53 SMTP-(08A006A1) Info - DNS Cache full, deleting last item
(somethingelse.gov)
02:17 14:53 SMTP-(08A006A1) Info - Adding theirdomain.com to DNS cache - TTL
= 3600
02:17 14:53 SMTP-(08A006A1) Trying theirdomain.com (0)
02:17 14:53 SMTP-(08A006A1) [x] Connecting socket to service <SMTP> on host
<theirdomain.com> using protocol <tcp>
02:17 14:53 SMTP-(08A006A1) Info - Found theirdomain.com in DNS Cache
02:17 14:54 SMTP-(08A006A1) MX connect fail "xxx.xxx.xxx.xxx"
02:17 14:54 SMTP-(08A006A1) MX connect fail "xxx.xxx.xxx.xxx"
02:17 14:54 SMTP-(08A006A1) Info - Adding theirdomain.com to temporary skip
list
02:17 14:54 SMTP-(08A006A1) requeuing C:\IMAIL\spool\Q71510020021e2e7d.SMD
R0 T1
02:17 14:54 SMTP-(08A006A1) finished C:\IMAIL\spool\Q71510020021e2e7d.SMD
status=3
James P. Bednarz - PC Systems Coordinator Kaestle Boos Associates, Inc.
Teamwork Rules!
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