Fun mail I received, that Thunderbird didn't even really detect as spam[1]:

Dear user of figuiere.net,

That would be me.

We have detected that your account has been used to send a huge amount of junk e-mail during the recent week. Most likely your computer had been infected and now runs a trojaned proxy server.

I thought it was your computer that was infected Mr. 86.203.244.53, since you just sent me that.

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

No thanks. A .zip file that contain a .zip file that contain a .scr is already highly suspicious :-)

Sincerely yours, The figuiere.net team.

That would be me as well? Riiighhht.

Sorry for the noise.

Notes

[1] mental note, install bogofilter