Premiere Elements 11 Editor does not have the Photo Mail feature. It is its Elements Organizer 11 that does.
What are the properties including file size of the photo the photo (s) that you want to send using Elements Organizer 11 Share/Photo Mail and what are you using as the email carrier? Are you trying to sent one or more than one photo at a time?
How do you have the Email feature configured in Elements Organizer preferences? EMail Client = ?
What is computer operating system?
Please review, consider, and supply more information.