Our email marketing system tracks clicks by appending a unique string after links within the email i.e.
The problem is: if a user views their email in the web browser, clicks on a link and then navigates back (via the browser button) to the email, the link no longer works. Refreshing the web page after the user has clicked through also breaks.
This doesn't show a 404 but a "This site can't be reached" error
This specific email links to multiple websites and there's only one site where this is happening.
Is this something that can be addressed via the .htaccess file?