+ 0 Votes Permissions p.j.hutchison 6 years ago What user accout are you using? Does it have at least Account Operator and Exchange Administrator rights? + 0 Votes user account eidegamisou 5 years ago I had the same exact issue. I tried everything possible. Including the things you have listed. Spent many hours trying anything just to get it to work. Permissions were all correct. I could access all accounts from webmail with my account. My BIG solution was "JUST RESET THAT USERS PASSWORD TO A BLANK PW"