http://issues.apache.org/SpamAssassin/show_bug.cgi?id=5372
Summary: Untrustworthy Received headers cannot match start-of-
line anchor
Product: Spamassassin
Version: 3.1.0
Platform: Other
OS/Version: other
Status: NEW
Severity: normal
Priority: P5
Component: Rules
AssignedTo: [email protected]
ReportedBy: [EMAIL PROTECTED]
Rules matching Received headers other than the first one which are not readily
parseable or maybe not worth parsing (i.e. untrustworthy) never match a pattern
starting with '^'
For example, this header from actual spam:
Received: by smtp.sisencenenged.com id htv5q204a2gi; Thu, 8 Mar 2007 00:38:45
-0800 (envelope-from <[EMAIL PROTECTED]>)
Will not match this test rule:
header TEST_RCVD_FORMAT1 Received =~ /^by smtp/
but will match:
header TEST_RCVD_FORMAT1 Received =~ /by smtp/
If I strip out the valid Received headers from the message so that the given one
is the only Received heaer, the anchored pattern matches.
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