On 2013-05-07 23:00:01 +0200, Jan P. Kessler wrote: > Yes this is possible with postfwd. The policy delegation protocol > contains reverse_client_name and client_name, which can be used within > postfwd rulesets. > > Example: > > id=COMBO01 > reverse_client_name==unknown > rbl=bl.spamcop.net,pbl.spamhaus.org > action=REJECT due to no valid rDNS and blacklisting
Thanks for the information. I hesitated between postscreen and postfwd, and chose postscreen to see if this were sufficient. Now I have postfwd in my TODO list. I suppose that it's better to use it in addition to postscreen, as the results from the RBLs should be cached. BTW, if I understand correctly what has been said earlier, DEFER would be better than REJECT as the reverse_client_name==unknown error may be temporary. -- Vincent Lefèvre <vinc...@vinc17.net> - Web: <http://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <http://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
