On 8/5/2013 3:16 AM, Ronald F. Guilmette wrote: > In message <[email protected]>, > Stan Hoeppner <[email protected]> wrote: > >> BTW, if you want to maximize potential hits on RHSBLs just short of >> doing body checks, you may want to give Sahil Tandon's TCP server based >> RHSBL header checker a spin. It grabs domains from headers and checks >> them against the 3 most popular RHSBLs: DBL, SURBL, and URIBL. > > Thank you. I have just looked at that but I can't see what it does > that makes it in any way superior to the built-in restriction verbs > that I can (and have) already put in main.cf. > > > Regards, > rfg >
The built-in restrictions can check envelope information for RBL/RHSBL listings. Sahil's lightweight TCP server can also check message headers such as Message-ID: and From: header for RHSBL listed domains. Other than this clever TCP table, they only other way to check these are with a milter or content_filter. This used to catch some extra spam, but hasn't been very effective for me lately due to changing spammer tactics. YMMV. -- Noel Jones
