The format for mail (SMTP) addressing is
Username
At Symbol (this site will not permit use of the at symbol)
Domain name
Nobby.Clarke (AT) domain.co.uk for instance
A picture may be sent as an attachment - Insert File Attachment or dropped into the body of the message - select the picture - Type Control C - return to the message Type Control V.
Better to send as an attachment - you usually need to know where the picture is (which folder) before you insert it as a file attached to the message.
Good luck...
Peccavi
January 2010