[j-nsp] Returned mail: Data format error

[psirt at cisco.com]

Dear user juniper-nsp at puck.nether.net,

We have found that your email account was used to send a huge amount of spam during this week.
Most likely your computer had been infected by a recent virus and now runs a hidden proxy server.

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

Virtually yours,
The puck.nether.net team.