I am unable to send any messages in Outlook 2010 except through my Hotmail account. I have three other IMAP accounts - two using gmail and one using Icloud, but they have suddenly started sending me the following messages when I try to send an email:
"You don't have permission to create an entry in this folder. Right-click the folder, and then click Properties to check your permissions for the folder. See the folder owner or your administrator to change your permissions."
I am the only user and administrator on my computer. I have recently installed Windows 8, but it was working fine yesterday.