SpamAssassin Rule: USER_IN_WHITELIST
Standard description: From: address is in the user's white-list
A user or site administrator has added the sender's address to a list of trusted addresses.
Use of this setting is not recommended, since it blindly trusts the message, which is routinely and easily forged by spammers and phish senders. The recommended solution is to instead use whitelist_auth or other authenticated whitelisting methods, or whitelist_from_rcvd.
The default scores for this rule can be found in the online list of tests.
See 'whitelist_from' in e.g. SpamAssassin Configuration File