Sending, receiving, and organizing email in Outlook.com
Hello Barrie,
Welcome to the Microsoft Community.
I understand that your email is not working properly with the cameras.
The Microsoft domain email server settings are shown in the image. POP, IMAP, and SMTP settings for Outlook.com - Microsoft Support
Ensure that your camera device supports modern authentication methods (OAuth 2.0). If the device does not support this, it will not be able to connect successfully. You may need to contact the device manufacturer to check for support for modern authentication.
Please feel free to let me know if you need any further assistance.
Best Regards,
Zachary.W - MSFT | Microsoft Community Support Specialist