Comparing Created By Email Field to Owner Email Field

Hi,

Requirment is notify a Owner when an Account is created. The email notification should not be sent when the Owner himself cretes the Account.

For this purpose I thought  the best solution would be to set a workflow with condition as  'When Created By is Not Equal to Owner'

I set a workflow with Trigger 'When New Record Created' that sends email notification when Created by Emal Address is Not Equal to Owner Email Address for Account Entity.

For this in workflow Rule Condition i wrote the following condition : FieldValue('<CreatedbyEmailAddress>')<>FieldValue('<OwnerEmailAddress>')

But the email are not sent When I create a record with Owner as some one else