Mail is red flagging all sent messages
Hi,
This is my first time posting in the community as I am ALWAYS able to find a fix for any Apple issues by searching the web. However, I am completely stumped on this one.
Since upgrading to Mavericks, every single message I send in Apple Mail on my exchange account gets automatically tagged with a default red flag. No matter what I've done so far, I cannot stop mail from automatically flagging all sent mail.
This does not happen with my 3 Gmail accounts I have running in mail.
Additionally, when the messages are flagged, they are only flagged in Mail. When I look in Outlook 365 online, the messages are not flagged.
I have tried to rebuild mailbox, went into System Preferences and unclicked 'Mail' under my exchange account in Internet Accouts then re-checked it. I have no idea what else to do as I have not been able to find any semi-related topics anywhere like this.
Any suggestions?
Thank you!
MacBook, Mac OS X (10.5.7)