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.