OK I Have a strange one here. I really want to think it is user errror, but they assure me it is not and said this has happened numerous times.
Basically she cannot find certain emails in her sent items folder. Right now we are looking for one in particular. She was also saying she has the reply email from the person, but her original content in it is not there as well.
It seems like all the sent items are there, but she is insisting this happens often and cannot find something she knows she sent.
She told me these are all done from her computer running outlook 2010 and not via owa or her iphone.