Last week I did again some work on nagios-plugins [http://packages.qa.debian.org/n/nagios-plugins.html]. After the announcement of Dann Frazier [http://dannf.org/bloggf/] to upload NMU to fix a trivial bug, I thought it's time again to give some extra care to the package. So I…
In case you think that greylisting might have some disadvantages but give you also some benefits, you probably have thought about to use greylisting with some conditions. For example if you checked some parameters of the mail and you (or better your mailsystem) guess it may be spam, greylisting could…
With policyd-weight [http://policyd-weight.org/] you are able to reject mails before the body is received by your MTA, here postfix [http://www.postfix.org]. No bounce mails, less wasted bandwidth and cpu time. policyd-weight scores characteristics of the mail positive or negative, is a defined value reached, it got…
Why run different instances of policyd-weight [http://policyd-weight.org/]? Cause you may want use different scorings based on Access Policy Delegation [http://blog.waja.info/2006/09/20/different-postfix-access-policy-delegation/]. At first you need make a copy of policyd-weight and modify it, since Robert didn't implement a switch to specify a…
Today I got some hints how to use different Access Policy Delegation [http://www.postfix.org/SMTPD_POLICY_README.html] with postfix [http://www.postfix.org]. This it opens the possibility to use different check_policy_service [http://www.postfix.org/SMTPD_POLICY_README.html] in dependency on sender address,…