Mail Server Connections
Basic authentication
Basic authentication (with username and password) is only supported for custom mail server connections. Connecting to Gmail or Microsoft accounts requires OAuth2 for security reasons.
Instructions for connecting to a custom mail server can be found in the Custom Mail Server: Basic Authentication article.
OAuth2 credentials
OAuht2 credentials are required to connect to Microsoft as well as Gmail servers.
To manage the OAuth2 Credentials, go to the Email This Issue configuration and choose OAuth2 Credentials under the Settings menu item.

Detailed steps for creating the OAuth2 credentials can be found in their respective articles_
Last updated
Was this helpful?