I really appreciate your response, I have done all the requirements stipulated in the guide above earlier before now. My website (https://www.variabledigitalnetworks.com/) loads well and my clients can send and receive emails successfully.
I guess you’d need to ask your webmail provider; that is some other service that is causing the problem since Netlify does not have mail service.
Have you confirmed that your redirects are set up right for the site to send your visitors to the right place? I don’t see any on your site, and you’d have to configure one to connect to your mail service, using this feature on our platform: