Hi All,
A while back I posted a message referring to an inability to send e-mail from SQL 2005 Database mail; the error being "Command not supported" - which appeared to be coming back from the Exchange Server.
Looking on the SQL Sentry forums (SQL Sentry having its own alerting function) they report the same errro testing their smtp code, with the post
This is the result of a known bug in .NET 2.0. when working with a server that does not support ESMTP. Microsoft will provide a fix in their next release.
Can anyone from MS confirm that this is a bug, and tell me how to either work round it, or enable ESMTP on the Exchange server?
Regards,
Richard
Just to close out this thread, should anyone be reading it in the future:
It appears that the exchange server is set up using non-standard ports to receive on, and also McAfee security is running to block data on all but the narrowly specified ports. Our exchange people kindly ommitted to tell us this, but the upshot is that nothing can send mail out through the Exchange server. The error message is a bit confusing, but the root cause is security, not SQL or the client.
Regards,
Rich
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