Postgrey
1. Introduction
2. Postgrey
3. Greyfix
Introduction
Taken from greylisting.org... "Greylisting is a new weapon to use against spam in this great war being waged upon it. With this new shielding method, by which you may block out huge amounts of spam, you are sure to please your email clients! In name, as well as operation, greylisting is related to whitelisting and blacklisting. What happen is that each time a given mailbox receives an email from an unknown contact (ip), that mail is rejected with a "try again later"-message (This happens at the SMTP layer and is transparent to the end user). This, in the short run, means that all mail gets delayed at least until the sender tries again - but this is where spam loses out! Most spam is not sent out using RFC compliant MTAs; the spamming software will not try again later."Postgrey
apt-get install postgrey libnet-rblclient-perl
Greyfix
I found Greyfix after I setup Postgrey, it is a minimal greylist implementation for Postfix. I might migrate to in the future, but while I have the resource to run Postgrey and it doesn't cause me any problem, I don't have a need to change. References- http://greylisting.org/
- http://postgrey.schweikert.ch/
- http://www.howtoforge.com/greylisting_postfix_postgrey
$Id: AddingPostgreyToPostfix,v 1.4 2008/01/10 17:21:42 martin Exp $
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