I have an user who receives a hundreds of "Delivery Failure" emails a day in his Outlook connected to Exchange Server. I thought it was going to go away after several weeks, but it has been continuing for more than 2 months.
For now I created a new rule (every email where the subject has "Delivery Failure" goes to "Deleted\DeliveryFailure" folder) in his Outlook to put them away from INBOX.
But I need to know how to stop this. The user's computer is virus-protected by Kaspersky and I ran AVG scan just to make sure it is NOT infected.
Our exchange server (SBS2010/Exch2010) is not being used receive internet emails.
We have a local ISP that is handling emails. So I am using MAPI Lab POP3 connector to pull new emails from each user's POP mailbox and to drop them into each user's exchange mailbox.
Most of email addresses that are in this emails are not real. Certainly the links in the body of email are "fake". You can tell by just reading the URL. So I never clicked.
I know that anyone can create a fake email all day long if they want to, but is there a way to stop this?