allow-unencrypted-plain-auth reference
A PowerMTA configuration directive used to control submission, routing, delivery, logging or operational behavior.
Purpose
A PowerMTA configuration directive used to control submission, routing, delivery, logging or operational behavior.
Syntax
allow-unencrypted-plain-auth valueIllustrative example
# Illustrative only — verify syntax in your licensed PowerMTA 2 documentation
allow-unencrypted-plain-auth VALUEVersion-sensitive: Replace VALUE with a setting appropriate to your topology. Verify exact syntax, scope and defaults against the documentation for the installed version.
Production guidance
- Change one variable at a time
- Document the reason for the value
- Test effective behavior, not only parser acceptance
- Monitor delivery responses after deployment
- Keep a rollback copy
Common mistakes
Common failures include using the directive in the wrong scope, copying syntax from another software version, referencing an undefined object, choosing a value that conflicts with provider signals, or reloading without validation.