With 2FA enabled, attempts to use the regular password associated with the email account will result in a continued prompt for a correct password or failure to connect or send.
Users with Two-Factor Authentication (2FA) enabled on their Office 365 account require the use of App Passwords for use in Access Recruitment CRM.
App Passwords are codes that give an app or device permission to access your Office 365 account.
To create an App Password for use in Access Recruitment CRM:
Log into Office 365
Click the user's name in the top right and click My account
Click Security and Privacy settings.
Click Additional Security Verification or Two Factor Verification settings.
Click App Passwords to generate individual passwords for Outlook and RDB ProNet.
Further instructions available from Microsoft web site.
Use the password in place of the user’s regular password in Access Recruitment CRM:
Click My Action and then click Profile
Click Mail
Type in the app password in the SMTP password field
Click Save