Email getting deleted from sent items after 90 days. No policy is in place

COuld be client or server side rule that broken, hlaf/removed or corrupt

Try Closing outlook and re-opening using
Start>Run>Outlook.exe /cleanrules

This should clear both client and server side rules that may be doing this
*May pay to note details of any current rules before running so they can be recreated

However, it could also be a filter or view
Start>Run>Outlook.exe /cleanviews
This will clear any views or filters hiding them


Id also have a look at the users AutoArchive settings
make sure there are nbo global settings setup or individual folder archive settings that may be archiving them off

I will try this and I will let you know the results. Thank you

It happened again. His sent items are gone again. Not all of them, but now the oldest sent items that he has is from 12/08/2012.

Might look at trying to recreate his outlook profile

Might also look to see if this user is syncing their mailbox with a mobile device such as an Iphone or Ipad

If they are disable the Sync and test

I know that he does sync with iphone and ipad. What is the disable sync and test?

Disable the Sync on the user Ipad and Iphone
Easiest way would be to simply go into settings>Mail, Contacts, and Calendar

Select the exchange account
Turn off all folders being synced

Or you could sumply delete the exchange account

But if I do this, this user is going to stop receiving emails and calendar warnings in his phone and ipad right?

Yesw it will

But you only need to disable long enough to test
If its diasbled, and the sent items are still getting deleted you can re-enable

If its disabled and the sent items no longer get deleted, then you know its the Iphone/Ipad causing the items to be deleted

I did this, but the sent items got deleted again about 2 days ago. It happens on the beginning of the month. Now he just has sent items going back to 01/01/1013.

I found out the problem and it was a user that was deleting his email.