One month from today, we’re going to start to turn off basic auth for specific protocols in Exchange Online for customers who use them.
Since our first announcement nearly three years ago, we’ve se...
Updated Jan 01, 2023
Version 16.0
Blog Post
5 MIN READ
Basic Authentication Deprecation in Exchange Online – September 2022 Update
dz890 I was talking about an internal IIS SMTP Relay, not for use with mobile phones. This is a requirement for our legacy applications.
humbeglez So it sounds like, If SMTP AUTH of TLS using any of the Options mentioned here is still going to work to (internal company members only): 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 Then all should still function normally without interruption after the Jan 2023 cut-off date correct? Or if it is already configured and properly locked down?