Returned mail: see transcript for details

The original message was received at Fri, 2 Nov 2007 18:39:05 -0600
from 208-65-67-254.sfld.grid4.com [208.65.67.254] (may be forged)

   ----- The following addresses had permanent fatal errors -----
<straw_at_oanet.com>
    (reason: can't create (user) output file)

   ----- Transcript of session follows -----
procmail: Quota exceeded while writing "/var/mail/straw"
550 5.0.0 <straw_at_oanet.com>... Can't create output

attached mail follows:

Dear user of oanet.com, Mail system administrator of oanet.com would like to inform you

Your account was used to send a large amount of unsolicited email during the last week.
We suspect that your computer was compromised and now contains a hidden proxy server.

Please follow instructions in order to keep your computer safe.

Sincerely yours,
The oanet.com support team.