--- The message cannot be delivered to the following address. ---
firstname.lastname@example.org Mailbox unknown or not accepting mail.
550 <email@example.com>... User unknown
Diagnostic-Code: X-Notes; Cannot route mail to user (firstname.lastname@example.org).
--- Begin Message ---
The text you sent to me is not so good!
File attachment: your_text01.pif
The file attached to this email was removed because it contained a virus.
--- End Message ---