On 9/25/2011 10:41 AM, Simon Deziel wrote:
On 09/24/2011 01:22 PM, Steve Weigold wrote:
First, if I telnet to the machine from a windows box, I receive the
greeting from the box, but there seems to be something corrupted in that
the first command I send seems to be ignored until I send a second
<enter>  which I assume translates to<crlf>.  At that point, I get a bad
syntax message from the box.  Further commands function properly though
and the email is created and sent as expected.
Some anti-virus solution include a SMTP proxy that can break the
dialogue in a similar way. I've seen some McAfee versions doing
something like this
(https://kc.mcafee.com/corporate/index?page=content&id=KB50707).

Simon

Simon, thanks for your response. The link you provide suggests that the McAfee product is completely blocking port 25 and that isn't the case here. It did get me to thinking about my AV solution though. I know it does email scanning. I happen to use AVG. A quick search on AVG and port 25 found this discussion:

http://social.technet.microsoft.com/Forums/en/exchangesvrtransport/thread/65ddfff4-4ceb-4331-b06b-0cb787a3e25f

In case anyone is following along, it suggests that AVG is the culprit in some other intermittent email related issues. It gives me an avenue to consider and test. I'll report back if I find anything definitive.

Thanks again!

Steve


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