We've got a few internal applications (such as RAID, UPS, Firewall, etc) that want to send monitoring mails. We have a Exchange 2010 on the SBS 2011 server, Outlook and ActiveSync and such business email related stuff work fine. However, I have been unable to make any of them send mail through Exchange. They all offer settings for smtp, so I figured it should be pretty simple. But alas, no.
None of the applications feature an informative error about why sending of mail failed, so I get no help there. I have tried adding verbose logging to the send connector in exchange, but I don't get any events in that log at all.
So: Are there any settings that need to be specified for letting applications send mail using exchange as smtp server? And how can I debug this when the send connector does not see anything?