Zoho Mail and Office 365

Hi there,

I thought I correctly setup Zoho mail to host my emails. However, I keep getting error [DNS] message when I test and send email to one of the emails I have set-up under group.

What I am trying to achieve is this:

I would like Zoho Mail to host my emails rather than Office 365.
I would like to continue using all Office 365 Apps other than the email which is being hosted by Zoho.

Is the above possible to do if I use the [Zoho] hosting routine, if not can you please let me know how I can best do this.

Kind regards.