Is it possible to create an emailaccount without having to create a useraccount?

No. What do you want to achieve?Rgds,Victor

Use mail enabled public folder instead, which doesn't require user account to be created but depends on usage why you want it...Amit Tank | MVP - Exchange | MCITP:EMA MCSA:M | http://ExchangeShare.WordPress.com

It's going to be used for file sharing with external contacts.

I would rather give them FTP access because we can not share mailbox without any internal user account & password and moreover it will not be read-only so any external contact can delete another contact's email or file.Amit Tank | MVP - Exchange | MCITP:EMA MCSA:M | http://ExchangeShare.WordPress.com