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grzywacz

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I have seem to have several messages waiting in the queue with the status of:

'4.4.2 No greeting from remote host'

Anyone seen this or have any ideas?
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sedell

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That means that DNS located an address for the domain the message is being sent to. KMS connected, but didn't get a response. It's not a problem on your end. It could be an SMTP server or gateway that's either having problems or mis-configured.

Scott
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grzywacz

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That may be true, but very unlikely for all mailservers waiting to receive in that queue - manually telnetting to them produces a valid response (where and what does the 4.2.2 come from? - is that the version of fetchmail on the receiving end?)

Switching the SMTP to our ISP's mailserver and then re-sending the message gets though straight away - unlikely if it was mis-configured.

[Updated on: Thu, 22 December 2005 16:34]

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sedell

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If it goes through your ISPs SMTP server (assuming it's not getting queued there), and you can manually telnet to the IP and get a greeting, that would indicate a problem for sure.

When you manually telnet to the remote SMTP server, are you using the IP address KMS used? Are you doing it from the KMS machine, or a desktop?

4.4.2 is the SMTP status code for a timeout if I remember correctly.

Scott
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bperkins

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Are you telnetting to them from the mailserver itself or from another computer? Sounds like a networking/firewall problem.
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grzywacz

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I am telnetting from the mailserver itself, but it does look like a rDNS issue, because the reverse lookup does not point to the hostname of the mailserver.
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grzywacz

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Got it sorted!,

It was indeed a firewall issue - the NAT was not working correctly, and I was seeing connections being made, but then terminated. Re-applying the rule seemded to sort it out. Thanks for everybody's help.
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