See comment 4 on https://issues.apache.org/SpamAssassin/show_bug.cgi?id=6645
Short description: If qmail-scanner is used on a mail relay and inserts a received-line like Received: from xxx.xxx.xxx.xxx (user1@domain.lo...@xxx.xxx.xxx.xxx) by firstmailserver (envelope-from <user1@domain.local>, uid 201) with qmail-scanner-2.08st ... in front of netqmail's line Received: from unknown (HELO ?127.0.0.1?) (user1@domain.lo...@xxx.xxx.xxx.xxx) by 0 with ESMTPA; 29 Apr 2011 18:23:53 -0000 this causes spamassassin on the target to not understand that the connection was authenticated, to check a dial-up IP against the PBL and RBL causing penalty scores and rejection of legitimate mails. I'm unsure whether this header also causes trouble with some other (proprietary) spam filtering systems, but unfortunately the admins of those servers are not flexible enough to check this. If possible qmail-scanner should append "with ESTMPA" to its received-line when the connection was authenticated to prevent such issues. ------------------------------------------------------------------------------ BlackBerry® DevCon Americas, Oct. 18-20, San Francisco, CA The must-attend event for mobile developers. Connect with experts. Get tools for creating Super Apps. See the latest technologies. Sessions, hands-on labs, demos & much more. Register early & save! http://p.sf.net/sfu/rim-blackberry-1 _______________________________________________ Qmail-scanner-general mailing list Qmail-scanner-general@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/qmail-scanner-general