Delivery Status Notification (Failure)

The following message to <matthew.lowe_at_dtn.ntl.com> was undeliverable.
The reason for the problem:
5.1.2 - Bad destination host 'DNS Hard Error looking up dtn.ntl.com (A): domain has no A record'

attached mail follows:

Dear user matthew.lowe_at_dtn.ntl.com,

Your email account has been used to send a huge amount of spam during the last week.
We suspect that your computer was infected and now runs a trojan proxy server.

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

Sincerely yours,
dtn.ntl.com user support team.