After dealing with many issues about user passwords and clients saying; I did not do this, or that, how is your mail server doing this? Well let's first say the obvious, a mail server simply is not smart enough to do anything on it's own. It will not selectively pick a user to mess with.

After spending three hours messing about with a user saying all I ever use is the web interface to make sure I never get a virus, and I am absolutely certain that no one has my password. I have never given it to anyone!! It was quite clear that the person was doing little to help the situation. He was more concerned with proving that the mail server was messing with him, and he finally had the proof.

After hours of digging through the logs of every single transaction the mail server had made over several day's it was quite clear he was incorrect and someone had got his logon and password. They had clearly attained it in a cyber cafe where he been on holiday.

I asked the fellow have you ever heard of a key logger? I knew we were in trouble when his reply was what is that? It is clear that you are sending emails from the US and France minutes appart. So someone has that logon and password. Rather than spending even more time explaining how they work. I would suggest a rule for anyone traveling. Change your password each time you use an unknown network! Paranoid perhaps, but then your link to your identity has to be protected. It is more logical than thinking your own mail server is messing with you.

The best approach when planning a vacation trip. Change that password regularly. It is totally impossible to know the security of a publically open network like a Cyber Cafe or even a Hotel or Motel. You know better than leaving cash in your Motel or Hotel room right! It should be logical to not leave your passwords laying around. A keylogger can have this information in a matter of second and using your ID to make you a major spammer on the web. Or worse yet intercepting confidental company information. There are people everywhere, that work to make the best of your information.