*** ATTENTION ***
Your e-mail is being returned to you because there was a problem with its
delivery. The address which was undeliverable is listed in the section
labeled: "----- The following addresses had permanent fatal errors -----".
The reason your mail is being returned to you is listed in the section
labeled: "----- Transcript of Session Follows -----".
The line beginning with "<<<" describes the specific reason your e-mail could
not be delivered. The next line contains a second error message which is a
general translation for other e-mail servers.
Please direct further questions regarding this message to your e-mail
administrator.
--AOL Postmaster
----- The following addresses had permanent fatal errors -----
<mtwrat@aol.com>
----- Transcript of session follows -----
... while talking to air-xm01.mail.aol.com.:
quoted 1 line RCPT To:<mtwrat@aol.com>>>> RCPT To:<mtwrat@aol.com>
<<< 550 MAILBOX NOT FOUND
550 <mtwrat@aol.com>... User unknown