Getting error message in Finder after upgrading to macOS Sequoia

I am also getting the exact same error message since upgrading to Sequoia. I also work for the NHS and get emails from NHS Executive (info@Information.nationalhealthexecutive.com) as described later in the thread here. Moving the email to the bin and then back again into the inbox triggers the pop up so it must be something in the email triggering it. I have emails set to not load content directly in privacy settings but disabling this has no effect on the pop ups. I will block the sender of the email and unsubscribe to the emails in the hope that this solves it, but if anyone knows why this is happening it would be useful to know just in case I need to resubscribe to this NHS news letter in the future. Thanks. Just like, Michael this has been driving me nuts as its really inconvenient when sharing your screen during a teams presentation to have these randomly appear for all to see