Hi !!
>> Using port 587 will allow mobile users to send messages even when his
>> ISP blocks port 25, which is each time more usual on dsl/cable
>> providers. Another useful thing is that you could reject connections
>> to port 25 from infected computers (i.e. using some blacklists) before
>> giving the chance to use smtp auth (for very fast rejection) and allow
>> your possible infected users to use your server at port 587 even if his
>> ip gets blacklisted.
>
> This is the point that I made at the top about internal users. I don't
> believe viruses (virii???) commonly use the user's MUA to spread or to send
> the junk mail if it's one of those zombies.
they do not use the user's mua they use their own smtp engine, so
accepting only connections on port 587 will cut all virus attempts
(altough if you use smtp auth you will also cut them that way)
--
Best regards ...
I am Homer of Borg. Prepare to be assim... mmmm, donuts.
----------------------------------------------------------------
David Saez Padros http://www.ols.es
On-Line Services 2000 S.L. e-mail david@???
Pintor Vayreda 1 telf +34 902 50 29 75
08184 Palau-Solita i Plegamans movil +34 670 35 27 53
----------------------------------------------------------------
