I have set up a form with a confirmation page. When I test it with my personal email, everything works fine and the page is redirected to the confirmation page after the form is submitted.
However, when I use a test email address such as email@example.com, the page is not redirected to the confirmation page after the form is submitted. Instead, a response text of ‘thank you’ is displayed, which I did not set up for this form.
It seems like there may be an issue with the redirect for the form when a test email address is used.
When an anti-spam plugin marks a submission as spam, that prevents the processing of notifications and most add-ons as well as causes the default confirmation text, used by new forms, to be displayed instead of the form’s configured confirmation.