Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

Professional Opinions
Ask a Question
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE

troubleshooting Question

SMTP Sessions

Avatar of thrill_house
thrill_houseFlag for United States of America asked on
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.