I learned the hard way that FluentSMTP will only send from the account used to build the Google Console app.
No place in their instructions does it say this. Even in the OAuth consent settings, they say, "Remember, here, the email addresses are used as the Email Addresses you will be using to deliver emails from WordPress using the FluentSMTP plugin."
THIS IS WRONG.
No matter what email addresses you use in these settings, the plugin only sends from the Google account that created the app.
Hope this saves some people some time and sanity.
I learned the hard way that FluentSMTP will only send from the account used to build the Google Console app. No place in their instructions does it say this. Even in the OAuth consent settings, they say, "Remember, here, the email addresses are used as the Email Addresses you will be using to deliver emails from WordPress using the FluentSMTP plugin." THIS IS WRONG. No matter what email addresses you use in these settings, the plugin only sends from the Google account that created the app. Hope this saves some people some time and sanity.