Blacklists

admin — Fri, 03 Oct 2008 11:20:33 +0000

Some time ago when some server admins got fed up with all the junk mail they received, they started to track the IP addresses of the servers that sent them spam, and put them on “blacklists.” Any letter received from a server on their blacklist was deleted immediately. It worked pretty well. So they started to share their blacklists with other server admins. And other admins started to add on to those blacklists.

Email Firewalls

admin — Fri, 03 Oct 2008 11:17:23 +0000

Managing incoming messages to prevent spam, viruses, and phishing attacks can be a lot of work. That’s why large corporations usually install “email firewalls”, or hire 3rd party vendors (like “Barracuda Firewall” or “Postini”) to handle their incoming email.

G-Lock EasyMail » blacklists

Blacklists

Email Firewalls