mxallowd
Anti-Spam-Daemon using nolisting/iptables
Description
mxallowd is a daemon for linux/netfilter(iptables) which uses nolisting (http://nolisting.org). That means, you define two MX-servers in your nameserver and mxallowd will block the access to any of these mailservers if the client did not try the other one. This blocks non-RFC-compliant mailers, which are often in use by spammers and so-called direct-to-second-mx which is also a technique mainly used by spammers.Upload more screenshots
Please help extend the collection of screenshots. Just make a screenshot and upload it here. You don't need to register or anything.
Upload a screenshotHint: upload an image here from your clipboard with Ctrl-V
Homepage
http://michael.stapelberg.de/mxallowd
Install this software package
If the package is available for the distribution you are currently using on your computer then install the software by clicking on…
Install mxallowd