AUTH Stage

In the console: Settings › MTA › Session › AUTH Stage

When mail apps must sign in to send, and which sign-in methods are offered. For specialists.

AUTH Stage

Require Authentication

Specifies whether authentication is necessary to send email messages.

Settings of their own: see Expression. Name in the API: require.

Must match sender

Specifies whether the authenticated user or any of their associated e-mail addresses must match the sender of the email message.

Settings of their own: see Expression. Name in the API: mustMatchSender.

Allowed Mechanisms

A list of SASL authentication mechanisms offered to clients, or an empty list to disable authentication. The server supports PLAIN, LOGIN, and OAUTHBEARER mechanisms.

Settings of their own: see Expression. Name in the API: saslMechanisms.

Authentication Errors

Max Errors

Maximum number of authentication errors allowed before the session is disconnected.

Settings of their own: see Expression. Name in the API: maxFailures.

Error wait

Time interval to wait after an authentication failure.

Settings of their own: see Expression. Name in the API: waitOnFail.