not receiving emails sent from my website

not receiving emails sent from my website

Hi,

I can receive emails fine except those sent from my website. To troubleshoot, I changed my website send to email to a Google Apps one and it works fine, so it is not my website programming.

Emails are not in Spam. I have whitelisted my own domain within the email account and within the control panel. I don't know what else to do.

Thanks,
Helen