* Carlos Mennens <carlosw...@gmail.com>: > > Ah, maybe they're looking at all the headers, which is really stupid! > > Oh so then this is completely something configured wrong on their end > using Microsoft Exchange, right?
I seriously doubt that exchange can do this. But I guess the error must be someplace on their end. You can reproduce it easily: * send a mail there. When the mail is being blocked, stay connected. * now change your Postfix to REMOVE the OFFENDING HEADER with the problematic IP from the mail: header_checks = pcre:/etc/postfix/header_checks with /the.ip.which.triggers.the.check/ IGNORE * postfix reload * send another mail, from the same ip! (that's why I said: stay connected) > I just sent email from the same IP to my personal and friends Postfix > mail servers who both use RBL checks to zen.spamhaus.org and they > passed through fine. So do we. > Can I ask what the normal procedure is for mail? If the latter IP is > listed on a PBL but the last received IP is not, does it then allow? > Does Postfix only look at the the most recent received client IP for > RBL checks and thats all? Of course. Everything else cannot be trusted anyway. -- Ralf Hildebrandt Geschäftsbereich IT | Abteilung Netzwerk Charité - Universitätsmedizin Berlin Campus Benjamin Franklin Hindenburgdamm 30 | D-12203 Berlin Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962 ralf.hildebra...@charite.de | http://www.charite.de
