Why is my website not able to send mail?

A common reason for this is that the address does not match your site domain.

To help improve email deliverability and prevent spam from being sent from our network, the 'Sender' address for your message must match the domain name of the website used to send the message.

If this header is set to a domain not assigned to your hosting package, the message will not be sent. If you have any further issues, please contact our support team.