SpamAssassin Rule: X_IP
Standard description: Message has X-IP header
Explanation
The message contains an "X-Ip:" header. The rules ![[WWW]](/wiki/modern/img/moin-www.png){kind=small}
commit log describes it as a "not-quite-perfect-but-still-good header existence test". Presumably it is commonly used in spam for tracking purposes.
Further Info
The default scores for this rule can be found in the online list of tests.