iPhone not syncing with Exchange server
I'm having an issue with IOS 5.1.1. Since Monday, my iPhone is downloading emails from my Exchange (outlook) account like it always has, the problem is, when I delete an email in Outlook, it's not deleting from my phone. Similarly, reading an email in Outlook doesn't mark it as "read" on my phone. This leaves me at the end of the day with hundreds of unread/extraneous emails on my phone that I have already addressed, filed or deleted in Outlook. How do I correct this?
This is weird because it has worked correctly with everything syncing properly up until this week, and I did not update anything.
I'm using a PC for the Outlook - same PC as always, and no updates unless my company updated something remotely without my knowledge.
I have set up my email account using the "Exchange" option when I added it. Already tried deleting and re-adding the account (twice).
Thank you!