I am running Exchange 2013 and I have an end user who connects to it via Outlook 2010. All was going well till he went to forward an email and he noticed that the From button appeared and auto populated the sender's email address.

I have clicked the Empty Auto Complete List in Outlook's Send messages... still displayed the From tab when forwarding.

I recreated the profile in outlook... same thing.

I created the profile with outlook 2013... same thing.

There is only one user profile setup in Outlook.

(I know the from tab usually appears when you have multiple profiles setup in Outlook and/or when you configure the "From" tab.)

I opened the end user's email in Exch 2013's OWA... what was different here was when I clicked on the email and it opened, it did NOT have the Reply or Forward option... and it displayed as a "Draft" email.

Does anyone have any ideas?