I was recently tasked with updating the SMTP Mail Setup settings because emails were no longer being sent from Business Central.
The inbox that's set up in Business Central is a shared inbox, and with Basic authentication selected (before the issue) sent items would show up under the Sent Items folder in the shared inbox.
Since changing some passwords and the authentication method to OAuth 2.0, the Sent Items are now showing up in the user's inbox instead of the shared inbox.
For clarification: if a user sends an email from the shared address in BC, it appears in their specific Sent Items folder.
Please note: as part of this process, I have clicked Apply Office 365 Server Settings to this setup.
Please see screenshot below for the current SMTP settings.

Can someone please confirm: is this expected behaviour?
If not, are there any settings to ensure any emails sent from Business Central return to the shared inbox's Sent Items folder?
Lastly, I am very inexperienced with Business Central, so Layman's Terms would be appreciated unless otherwise required
Thanks,
RSTSi