Temporary Blacklisted IP address

I have a DELL i5570 laptop with Windows 10 and have Kaspersky Total Security.

When I have the Kaspersky Secure  Connection active and try and open Outlook I get the following message "Your IMAP server wants to alert you to the following: Temporarily Blacklisted IP address - Try again later."   After a cancel I get a pop-up with "imap.comcast.net",  my UID and password stars.

If I terminate the connection or close KSC, it works.

If I use NordVPN instead, it works.

Suggestions?