Hi, I've got exim server as a front end to our qmail servers where all the users is managed,
I'm using greylistd and works quite well, also have greylistd in the data acl for null senders. One of the domains is being dictionary attacked by some sort of zombies pc's and it eventually gets past the greylisting to the internal mailserver, the internal server is sending alot of unknown senders messages to the postmaster Is there anyway I can stop this from exim, I've seen some nice ways to limit dictionary attacks if more than 2 failure rcpts in the smtp session ( http://www.configserver.com/free/eximdeny.html ) . Is there possible methods to verify rcpts against the internal server via ldap or something like Q0729 in http://www.exim.org/exim-html-4.40/doc/html/FAQ_7.html#TOC259 Any advice would be apreciated Thanks Sew -- ## List details at http://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
