Mail Authentication

Since: Version 2025.12.02-67ee9e96

The functionality described in this section requires version 2025.12.02-67ee9e96 of KumoMTA, or a more recent version.

The mail authentication helper module provides functions to assist in performing email message authentication checks.

local mail_auth = require 'policy-extras.mail_auth'

Available Functions

• check
• iprev
• iprev_msg