[gentoo-security] .com attachment attack?

[Adrian CAPDEFIER]

Spam detection software, running on the system "mailcluster2", has
identified this incoming email as possible spam.  The original message
has been attached to this so you can view it (if it isn't spam) or block
similar future email.  If you have any questions, see
the administrator of that system for details.

Content preview:  Hi. I seem to be the victim of an attack to get me of
  mailing lists. Here is the message I've been getting with the contents
  of the file ______-ed out. So my server doesn't allow .com attachements
  and this attacker somehow manages to make the mailing list manager
  think messages sent to me are bouncing. Am I right? [...] 

Content analysis details:   (12.0 points, 5.0 required)

 pts rule name              description
---- ---------------------- --------------------------------------------------
 0.0 HTML_MESSAGE           BODY: HTML included in message
 3.0 VIRUS_WARNING13        BODY: Looks like unhelpful Exim system_filter 'virus warning' (13)
 3.0 VIRUS_WARNING14        BODY: Looks like Exim system_filter 'virus warning' (14)
 6.0 VIRUS_WARNING_EXIM     Unhelpful Exim system_filter 'virus warning'