I’m struggling to get the contact form to work on my site. I’ve tried configuring it with and without SMTP server details, and with different SMTP servers.
The Thank you page displays (as a PHP) but the email never sends (or reaches any junk mail box). PHP is enabled for my site.
Does 123reg have specific rules for outgoing email?
The mail-tester test is most likely only going to work with “email via server”, not with a custom SMTP server (which would likely block an email it’s not the recipient of), did you test it like this?