Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature currently requires accessing the site using the built-in Safari browser.
Stephen said:We would need to see the full headers to know, submitting a ticket would be best.
Stephen said:ok, it looks like the mail server you are sending to does not have the domain on the server.
There could be many reasons for that, from cached DNS to the domain not being setup for mail.