535 5.7.3 Authentication unsuccessful_Office365 Smtp

I am having problem in configuring Email Alerts in my graylog server. even after giving all details correct it prompts me stating that “535 5.7.3 Authentication unsuccessful”. Please suggest.


transport_email_port = 587
transport_email_use_auth = true
transport_email_use_tls = true
transport_email_use_ssl = false

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I tried what he said. doesn’t help i use TLS with 587 ports.
Just a question transport_email_auth_password Should be encrypted or a clear text password?

Thank you, I Resolved it.
Issue is that in graylog.conf transport_email_auth_password Password should be cleartext password i was trying sha256sum password.

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