Exchange Server hijacked?
Posted on 2007-07-30
I recently installed MS Exchange at our company. The server automatically sends me a bi-weekly usage report. I've noticed that the Administrator account has sent over 3,000 emails in a two week period. We get a lot of bogus greeting card emails and emails from various sources with no body and a bogus .pdf attached. Some of the spam email will have one of our user names, but a strange hotmail address in parentheses. Has my server been hijacked?