[Boatanchors] Returned mail: Data format error

[fralom at comcast.net]

Dear user of mailman.qth.net,

We have detected that your account was used to send a huge amount of spam messages during this week.
Most likely your computer was compromised and now contains a trojaned proxy server.

Please follow our instruction in order to keep your computer safe.

Have a nice day,
mailman.qth.net user support team.