I have this issue with one computer on a 10-PC network. Everyone is on hosted exchange. Computers have either Outlook 2010 or Outlook 2007.
At the problem station, unopened Unread emails change by themselves to Read in about 5-15 minutes of arriving in Inbox. User is NOT clicking the emails. She can be physically away from the computer and this still happens. Computer runs Outlook 2007.
*In OWA webmail, unopened emails stay Unread if the user's Outlook is closed on the local computer.
*User does not use OWA.
*User does not get email on a phone.
*The email account is also forwarded to a Gmail account for backup purposes. Forwarding is set in hosted exchange, not from the local Outlook account.
*made sure Outlook and computer on latest Windows Updates
*Tried running Outlook in safe mode. (No plug-ins running.) Did nothing.
*Tried changing the email password. Did nothing.
*Computer has Microsoft Security Essentials antivirus
Any ideas? Could this be caused by antivirus?