I setup the Post SMTP Plugin to Work with Office 365 API.
I do get Emails through the Office 365 API both in the Test Menu for the Plugin and using Ninja Forms to send an Email to a Specified address.

However, attempting to use the “Lost Password” or “Password Recovery” for WordPress, fails to send an Email. I get the message:
“Error: The email could not be sent. Your site may not be correctly configured to send emails.”

What did I do wrong with this?

This is the Email Log for the Password Reset:
From: WordPress <wordpress@*REDACTED Domain Name*>
To: *REDACTED Email Address*
Date: 2021-04-22 08:01:52
Subject: [*REDACTED Domain Name*] Password Reset
Delivery-URI: smtp:none:none://localhost:25

This is the Email Log for the SMTP Test Email:
From: Do Not Reply <Do_Not_Reply@*REDACTED Domain Name*>
To: *REDACTED Email Address*
Date: 2021-04-21 14:29:29
Subject: Postman SMTP Test (*REDACTED Domain Name*)
Delivery-URI: https://amazonses.com:443

I noticed that the Delivery-URL is not using AmazonSES and WordPress is using Localhost.

Is that the issue? If so, how can I get WordPress to only use Post SMTP for all Email Functions, or is this not possible?

If I go to the Diagnostic Test Page for the Plugin I get the following message:
`An Unexpected Error Occurred {
“readyState”: 4.
“responseTest”: “<p>There has been a critical error on your website.</p><p>Learn more about debugging in WordPress.</p>”,
“status”:500,
“statusText”:”Internal Server Error”