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Update (2006-07-14): Postfix 2.3 includes support for adding its own style of authentication info to its received headers by setting smtpd_sasl_authenticated_header = yes, which is disabled by default, in your Postfix config. SpamAssassin 3.1.4 and later includes support for this Postfix auth info.
Update (2008-06-20): Postfix 2.5+ includes native support RFC 3848 setting smtpd_sasl_authenticated_header is not needed but optional.
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\["madduck"\]: This will not fix TLS-authenticated sessions. See \[http://dev.riseup.net/privacy/postfix/ this patch\] which munges the Received headers. \["DarylC.W.O'Shea"\]: This should work to avoid the Dynablock problem in this specific situation but isn't recommended since it destroys the audit trail provided by the Received headers. |
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