On Monday, March 9, 2015 4:21 PM, Noel Jones <[email protected]> wrote:
> For performance reasons, postscreen does not do PTR lookups, nor > will PTR lookups be added to postscreen in the foreseeable future. I'm not sure how one (type of) dns query is a performance concern, and another is not, see below. > Either use one of the many RBLs that list dynamic clients, or put it's quite possible, however these RBLs are hardly complete, so the regex match still makes sense. > your PTR check in one of the smtpd_*_restrictions. I'd rather avoid this since I don't want zombies to occupy smtpd processes. Albert
