![]() ![]() Note that SpamAssassin used here is installed from CPAN on a host separate from the Zimbra server, running with qmail. Zimbra appends the X-Originating-IP header (since switched off as a workaround). Webmail applications add the X-Originating-IP header with the IP address that a webmail user is logged in from when sending mail.Ĭurrently, if a webmail user sends a message through a host running SpamAssassin, the RCVD_IN_PBL rule is triggered, upping the spam score.Īccording to the documentation, X-Originating-IP addresses "are virtually appended into the Received: chain, so they are used in RBL checks where appropriate", however I don't believe PBL lists are appropriate for this.Įxample: These headers (sanitised for privacy) are from a message sent using a Zimbra web client, from a user logged in from home, using an IP address his ISP has listed in the Spamhaus PBL at (the whole subnet 122.57.0.0/16). The Spamhaus PBL is a list of IP addresses that shouldn't send unauthenticated SMTP mail - such as DSL subscribers.
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