Jerry wrote: > On Thu, 25 Feb 2010 16:40:13 -0500 > Bowie Bailey <bowie_bai...@buc.com> articulated: > > >> Abide by what edict? Email marked as containing a virus is simply >> rejected. If a spammer or bot wishes to send out viruses from my >> network, they'll have to bypass my MTA to do it, which is more >> difficult since very few machines on my network have permission to >> send out via port 25. >> > > You should be using SMTP Authentication, irregardless of what port is > being accessed which would stop virtually all unauthorized > transmissions. If you don't know how to do that, ask or Google it. I am > really interested in how a Spammer is getting access to your network to > begin with. It sounds like your network is anything but secure. >
The users that are outside of my local network use SMTP Auth on port 587. I don't see the point of trying to force my servers and other internal machines to use authentication to send email. I still scan it all for viruses regardless of where it comes from. Spammers can get access to networks in quite a few different ways. This is why there are constant security updates to almost every program on your computer as well as firewall and router firmware. The point is: if something or someone does get onto my network, I will be able to detect them when they start trying to send their garbage out to the Internet. -- Bowie _______________________________________________ Help us build a comprehensive ClamAV guide: visit http://wiki.clamav.net http://www.clamav.net/support/ml
