I use OE for two of my email accounts. In both accounts, I am getting a lot of Mail Delivery Subsystem, MAILER DAEMON, postmaster, and Mail Delivery System emails from addresses I have not sent an email to. I am also getting them when I haven't sent any emails. It started last week when I sent an email to a friend and I received a returned mail notice. I opened it and it looked legitimate. Now, I am getting a variety and the weird part is that they come in marked as read without me opening them. I have preview turned off. All of my other mail comes in un-opened. I can't figure out what is going on. I have Windows XP Pro, IE6, AVG Pro 7, ZA Security Suite 6, SG, Spyware Blaster, Spybot S&D, PG and Pest Patrol. I have run them all and found nothing except for ZA found and quarantined Win32.HostBlock. Now, I haven't received as many mail delivery failure emails as before. Anyone have any suggestions or know what is causing this?