So hopefully I will be left alone long enough by the users that I can monitor this question. Anyways, I am running Exchange 2013 and I have 1 user, new computer, so fresh Windows install (8.1 Ent) and fresh Office 2010 install. She has emails that show up on her phone and on webmail, but do not show up in Outlook. I have tried a new profile on Outlook, even removing everything Office and reinstalling but it continues to happen. it seems there is no rhyme or reason to which emails do not show up in Outlook either. I have been sending her emails via my Outlook.com, gmail, and domain email nightly, and she has got them with no issues. Our CEO uses gmail primarily and hers sometimes show and sometimes do not as well as other emails from other agencies.
What is confusing is that all emails are in the Outlook Web App with no problems and also on her LG G2 phone. I really don't see a need to remove her AD and email accounts and recreate them.