Client settings
The configuration for your email clients can be found within the lette.io console webinterface in the Email settings tab. Please note that your configuration might look different than the one shown below.
Sending emails
Please note that Microsoft does not currently support sending emails as an Enterprise Application through SMTP. However, Microsoft is not disabling basic authentication for SMTP. Effectively, you can still use the same settings for sending emails from your legacy devices or applications as before.