I noticed that some of the Zimbra auto-generated emails (reports on various
bits) are getting hit with RBL scoring for some customers. This appears to
be because they are (quite reasonably) using private IPs on some of thier
internal Zimbra servers. However, when it goes through the MTA, it gets
hit as spam because of this. Example:
X-Spam-Status: Yes, score=10.297 tagged_above=-10 required=10
tests=[ALL_TRUSTED=-1, BAYES_00=-0.5, T_RP_MATCHES_RCVD=-0.01,
URIBL_BLACK=3.25, URIBL_DBL_SPAM=2.5, URIBL_JP_SURBL=1.25,
URIBL_RHS_DOB=1.514, URIBL_SBL_A=0.1, URIBL_WS_SURBL=1.608,
URI_HEX=1.122, URI_NOVOWEL=0.5, URI_TRY_3LD=0.963,
DSPAM.Innocent=-1.000] autolearn=no autolearn_force=no
The originating IP is Received: from zcs1.example.com (LHLO
zcs1.example.com) (10.2.0.3)
The IP is clearly listed in trusted_networks, as can be seen via the
ALL_TRUSTED scoring. Is there any way to write a rule that says if this
came in via a trusted host, to skip RBL lookups? Or at least, specific
servers?
Thanks!
--Quanah
--
Quanah Gibson-Mount
Platform Architect
Zimbra, Inc.
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