Quote Originally Posted by June7 View Post
I have Office 2010 and 2021. The Microsoft CDO for Windows 2000 Library is still there.
I do not have Office365.
CDO with GMail server works.

So I guess I will consider Outlook a deadend and abandon.
You *might* have migrated to Outlook New which does not support COM?

There is a registry entry you can add to stop New taking over, after why would you, if you have code like I have to send emails from Access for example.

As for CDO Colin has a test app you can use to test your connection. However as you must be aware CDO is just for sending?
https://isladogs.co.uk/email-tester/index.html