Cancel the outstanding change in wp-admin, then use PHPMYADMIN from your hosting control panel. Open the “wp_options” table and change the value of “admin_email” to your address.
Alternatives to the above method:
Thanks for the replies! Very grateful! However, I changed the email by creating a new user and deleting the one belonging to the previous administrator. I had assumed that any notification emails, such as the ones I get from my own site when plugins are changed and updates are available, and forms sent via Contact Form 7, would now work on this site I’d taken over. I had assumed that the old email address was causing the problem. But, I do not even receive emails when I try to change the admin email address, Contact Form 7 will not send forms and no notifications are coming to me by email. Is there a setting I need to change somewhere?
However, I changed the email by creating a new user and deleting the one belonging to the previous administrator.
You have only edited users. But which email address is now listed under Settings > General?
I do not even receive emails
WordPress then sends these emails, but they are rejected by your receiving mail server because they are recognized as potential spam. You can prevent this by setting up your domain correctly with regard to SPF records and switching to SMTP delivery. There are various plugins available to help you with the latter: https://de.wordpress.org/plugins/tags/smtp/
