January 2008
Intermediate to advanced
544 pages
12h 3m
English
Content preview from Apple Training Series Mac OS X Server Essentials, Second Edition
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Reducing Incoming Spam Using a Blacklist Service
Examining every spam message to try to determine its source would be a very tedious,
and probably not very successful, method of spam prevention. An alternative would be to
take advantage of one of the many blacklist services that exist. A blacklist service publishes
and updates a list of known open relay servers.
You can configure your Mac OS X Server to reference such a service for determining
whether you should accept mail from a given host. If, for example, there was a blacklist
service offered by a server named blacklist.pretendco.com, you would follow these steps:
1 In Server Admin’s Mail Settings, ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.