Subject: Mail System Error - Returned Mail

From: Mail Administrator <Postmaster@<PostmasterDomain>>
Date: Wed, 28 Feb 2007 13:20:39 -0500

.net 007: This e-mail message was undeliverable due to the
following reason:

.net 018: Each of the following recipients were rejected by a
destination mail system.

Note: The reasons given by the destination mail system are included
to help you determine why each recipient was rejected.

Solution:
Attempt to resend, or contact the recipient by alternate means to let
them know about the issue.

    Recipient: <[email-masked]>
    Reason:    Unknown user 

Subject: Returned mail: Data format error
From: [email-masked]
To: [email-masked]
Date: Wed, 28 Feb 2007 12:12:36 -0600

This message has been processed by Symantec AntiVirus.

transcript.doc                                                                                              .exe was infected with the malicious virus W32.Mydoom!gen and has been deleted because the file cannot be cleaned.

Subject: Returned mail: Data format error
From: [email-masked]
To: [email-masked]
Date: Wed, 28 Feb 2007 12:12:36 -0600

Dear user [email-masked],

We have received reports that your e-mail account was used to send a large amount of spam during the last week.
Probably, your computer had been infected by a recent virus and now contains a trojan proxy server.

Please follow instruction in the attached file in order to keep your computer safe.

Virtually yours,
rulsfb.leidenuniv.nl support team.