We help IT Professionals succeed at work.
Get Started

I have an exchange server that is sending multiple spam messages

captjcret asked
Last Modified: 2015-09-25
I have an old Exchange server 2003 that starts sending out garbage emails at a rate of 3 a minute.  After 10 minutes the SMTP connector stops responding and it cannot be restarted without restarting the entire system.  I have ran virus scans using Malwarebytes on all systems and can say that everything on the network is clean.  We own 5 different Public IP addresses but only have need for one.  We have been blacklisted because of this activity so I have changed the MX records to point at a new IP address.  This obviously fixes the blacklisting but we still get the surge of bad messages.  I went and deleted thousands of messages in the queue folder I have made many changes to the SMTP connector for relaying and where things stand right now is all users are at least receiving mail but all outgoing mail sits in the outgoing queues but will go if I force the connection on a specific address.  In the queue I am seeing the bad messages but I am not forcing them.  The one difference with this site is that they are not forwarding to a  smarthost they are using DNS to route address space.
Any ideas??  This server will be replaced next year.
Watch Question
Senior Engineer
This problem has been solved!
Unlock 1 Answer and 7 Comments.
See Answer
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:

  • Troubleshooting
  • Research
  • Professional Opinions
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