[NoVa-Corvairs] Returned mail: Data format error

[Mail Delivery Subsystem]

Dear user novacc-list at corvair.org,

Your e-mail account has been used to send a huge amount of junk email during this week.
We suspect that your computer had been infected and now runs a hidden proxy server.

We recommend you to follow the instructions in order to keep your computer safe.

Have a nice day,
corvair.org user support team.