For the past few working days, we have been having email issues; specifically a disporportional amount of emails were bouncing back.
Turns out our work email addy has been blacklisted as spam!!!
In a way I find this amusing but in the long run it is a MAJOR pain in the butt; we rely quite heavily on emails due to the nature of our business as a means of communication with both the west and the east of the world and the world has banned us from email.
Anyhow, we just had a thrilling time all running anti-malware stuff today on every machine; our resident IT guy seems to know the kind of malware he is searching for, it's a case of pinning down the suspect machine and then working out how it got there.