On Jul 14, 2005, at 2:47 PM, Darren Evans-Young wrote: > On Thu, 14 Jul 2005, Stan Horwitz wrote: > > >> On Jul 14, 2005, at 2:40 PM, Darren Evans-Young wrote: >> >> >>> Is this possible? And if so, how to prevent it? >>> >>> Listserv receives a posting for a list containing a virus with a >>> forged >>> MAIL FROM: address. Listserv sends the rejected message back to the >>> forged >>> address because it isn't subscribed, thereby spreading the virus to >>> a new >>> email address. >>> >> >> Darren, why don't you check out the F-Secure information on L-Soft's >> web site? Listserv and F-Secure have partnered to produce an F-Secure >> version that does exactly what you requested. See http:// >> www.lsoft.com/manuals/f-secure-faq.stm for details. >> >> > > Yeah, I know about that, BUT we run Solaris, not Linux. :-( What about Sophos? See http://www.sophos.com/ for details.