If you have problems with receiving emails sent from your site, first please install this plugin
It will log any outgoing emails from your site, so you will see if they are actually sent. If they are logged in but you don’t receive them, the problem is with your server.
This is a common issue for WordPress sites since they rely on the PHP mail function for emails. Most WordPress hosting providers lack proper server configuration for sending PHP emails, leading to delivery problems.
To avoid that use WP Mail SMTP by WPForms plugin:
WP Mail SMTP by WPForms – The Most Popular SMTP and Email Log Plugin