Alternative SMTP Authentication
Basic Auth for SMTP Relay Authentication will be retired by Microsoft in the near future. (https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/how-to-set-up-a-multifunction-device-or-application-to-send-email-using-microsoft-365-or-office-365#option-3-configure-a-connector-to-send-mail-using-microsoft-365-or-office-365-smtp-relay)RingCentral Contact Centre needs to provide an alternative authentication method to allow migration away from basic auth.
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