Hi Mark Outlook is not the only one that re-sends and email from a different ip with each attempt.
What tool do you use for greylisting? I can recommend milter-greylist which has ways to react to such situations: subnetmatch /24 subnetmatch6 /64 will consider ip addresses within a /24 IPv4 and /64 IPv6 network to be same. racl whitelist spf pass Will not greylist from sender which pass SPF checks, which is reasonable as you want to block out all those botnet drones which hopefully do not retry to send an email after the first attempt. Real mailservers would retry and therefore it is helpfull to avoid greylisting them anyway. And another feature: dnsrbl "DNSWL" list.dnswl.org 127.0.0.0/16 racl whitelist dnsrbl "DNSWL" Will also whitelist ranges from dnswl.org -Benoît Panizzon- -- I m p r o W a r e A G - Leiter Commerce Kunden ______________________________________________________ Zurlindenstrasse 29 Tel +41 61 826 93 00 CH-4133 Pratteln Fax +41 61 826 93 01 Schweiz Web http://www.imp.ch ______________________________________________________ _______________________________________________ mailop mailing list mailop@mailop.org https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
