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troubleshooting Question

SMTP Sessions

Avatar of thrill_house
thrill_houseFlag for United States of America asked on
Exchange
8 Comments1 Solution3291 ViewsLast Modified:
The network administrator in my company has been out for a few weeks, and will continue to be out for another week, and don't you know our email server started having problems.  Many of the emails we send out from within our applications are erroring out or just not sending.  When doing research on this, I saw something that had my head scratching.  My fear is that my companies exchange server is being used by spammers, can anyone tell me if I have anything to fear?

In System Manager, when I go under SMTP, and view Current Sessions, there are many listed, none of them from my company.  There are also connections that are going on for over 500 seconds.  Is this a cause for concern?

I enabled diagnostic logging on the MSExhangeTransport service, with a maximum logging level on the SMTP protocol.  I did this yesterday at 2:45pm, and I have probably received 1000 errors since.  Is this normal?  Most of the errors are Event 7010 "Sender already specified".  Most of the IP addresses are from foreign countries such as Italy, Israel, and Russia.

Let me know your thoughts!  Thanks.