I've been using dynastop for a week now and I still love it. First, a quick review.
DynaStop does a reasonably good job of identifying dynamic IP addresses. It isn't good enough that I would recommend blocking on, but it has eliminated almost all of my image spam. The way I'm using it is: On the lowest MX - failed lookups and dynamic IPs get a defer. On the next highest MX number it accepts mail from these IPs but rate limits them to 2 messages per 10 minutes. At first it caused a major problem in that it had a false positive on the domain secureserver.net (godaddy's servers) which also failed to retry higher MX numbers. But I have found and fixed that. Now it seems to just work. The new version uses PCRE regex so it has a lot more potential than it did last week. One of the things it needs is a rewrite of the default config file. So if one of you regex wizards wants to rewrite this that would really help a lot. It can be downloaded at http://tanaya.net/DynaStop/ Info on the new PCRE is here: http://www.exim-users.org/forums/showthread.php?t=53579 So - who wants to jump in and do this right on the config file? -- ## List details at http://www.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://www.exim.org/eximwiki/
