Technical Tip: How to disable 'SMTP Auth Failure' log

[caunon]

Description
This article describes how to disable 'SMTP Auth Failure' log message.

Solution
- Make sure to configure SMTP authentication setting properly.

-In some situation, there is no SMTP authentication setting.
Notice that a lot of  'SMTP Auth Failure' log messages in FortiMail can appear under Monitor -> Log -> History as below.

- To avoid FortiMail to stop logging 'SMTP Auth Failure' log message as there is no SMTP Authentication setting, consider to run CLI commands in FortiMail as below.

# config sys mailserver
    set smtp-auth disable
    set smtp-auth-over-tls disable
    set smtp-auth-smtps disable
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