I've discovered an issue on my wordpress site - no emails are being sent - for new user creation, when comments are written, or when a contact form (contact form 7 or jetpack) are filled out. The emails are not sent to spam or regular inbox.
I even installed WP fresh and was able to get emails to send, but when I set the WP URL and Site URL to make the website live, emails stop working.
I've tried installing and activating WP-Mail SMTP using various settings - both GMail and Godaddy settings and this didn't solve the issue
I'm using Godaddy Shared Hosting on Linux, btw.
What could cause WordPress emails to stop sending when a the WP URL and/or Site URL is changed?