On Thu, Jul 21, 2016 at 06:21:38PM +0300, Lefteris Tsintjelis wrote: > Would it be too much to ask for a single reverse DNS lookup client > based black/white listing in postscreen? > > ... > .gmail.com reject > .live.com reject > .postfix.org accept > ...
Can't you do the same thing (to solve your unstated problem, which I assume might be to avoid delays with after-220 tests) with DNSWL and postscreen_dnsbl_whitelist_threshold? Most large-scale legitimate senders are listed in list.dnswl.org. Those which are not listed are usually small enough to retry from the same IP address, so the delays won't be much. -- http://rob0.nodns4.us/ Offlist GMX mail is seen only if "/dev/rob0" is in the Subject:
