ietf-smtp
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Re: New Issue: NOOP clarification

2007-11-28 21:57:49

Hi Hector,
At 14:39 28-11-2007, Hector Santos wrote:
I just came across a transaction where a Microsoft ESMTP server rejected it with a 421 response.

Are you sure it's a Microsoft ESTMP server and not some application proxy filtering SMTP commands?

Regards,
-sm