Microsoft IIS Web Server
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The first I heard about the problems we're experiencing, was when somebody contacted me about emails that were not getting through. People were receiving a "Delivery Failure Report" that said "Delivery to the following recipients has been delayed".
The first thing I did was have a look at the SMTP queue on our server and to my suprise there was five days worth of email in the queue that hadn't been sent.
I also checked the event viewer and found 1000's of SMTPSVC warnings that read:
Message delivery to the host '<ip address>' failed while delivering to the remote domain '<domain name>' for the following reason: The remote server did not respond to a connection attempt.
Any idea what the problem could be?
Many thanks,
Dave.
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Simon
Now I'm forwarding my mail (using smarthost) to a mail server that is allowed through the firewall.
And a queue of 1890 items is now 0 :-)
http://support.microsoft.com/support/misc/kblookup.asp?ID=827363






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You need this security patch
http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=51184D09-4F7E-4F7B-87A4-C208E9BA4787
How did you get around the firewall problem and forward your mail (using smarthost)?
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Thanks Guys, it is was a problem with the firewall and not having a smarthost mail server setup.
Now I'm forwarding my mail (using smarthost) to a mail server that is allowed through the firewall.
And a queue of 1890 items is now 0 :-)
Open ports 25, 110 or something else...

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The eliminate the immedeate problem, I used a smarthost to relay our mail for us. That got the mail out of queue, but didn't solve why WE couldn't send our own mail out (instead of going through a third party).
When I tried to connect to AOL manually, I received this message:
220-rly-ye01.mx.aol.com ESMTP mail_relay_in-ye1.7; Sun, 06 Jun 2004 20:38:23 -04
00
220-America Online (AOL) and its affiliated companies do not
220- authorize the use of its proprietary computers and computer
220- networks to accept, transmit, or distribute unsolicited bulk
220- e-mail sent from the internet. Effective immediately: AOL
220- may no longer accept connections from IP addresses which
220 have no reverse-DNS (PTR record) assigned.
I'm guessing that our failure to connect was possibly a result of this "no reverse-DNS PTR Record" item. I have no idea how to get a PTR record established for the IP we sent mail from though...
Scott
-- Frank






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But I do NOT have a "Configure External DNS servers" tab!!
Please help.
Can you help? I am having the same problem and need to figure out a solution asap. You can also contact me directly at {{email address removed for member's protection - 3-Aug-05 --alimu/Page Editor IIS}}
I appreciate your help. Thank you in advance.
Thanks,
Rich

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What is port 25 used for? Will SBC unblock this port?
I am currently not using SBC to send emails ...
I believe my problem is similar to FrankTaylor617 but I am using IIS 2000. The problem is that under Default SMTP Virtual Server Properties - Delivery Tab - Advanced, there isn't a Configure External DNS servers button.
Call them or log into help.sbcglobal.net .
There is a form to fill out and they will unblock it. Everything will just go back to working. Very Bizare.
Thanks,
Rich






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newbie
{{email address removed for member's protection - 3-Aug-05 --alimu/Page Editor IIS}}

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Cheers.






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Microsoft IIS Web Server
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IIS is Internet Information Services, the web server included with Windows Server operating systems. All current versions are built on a modular architecture; modules can be added or removed individually so that those required for specific functionality are installed. The full installation of IIS includes HTTP, security, content, compression, caching, logging and diagnostics.