Custom domain and users

Custom domain and users

Hello, I'm trying to use Zoho Mail to send and receive email from/to myname@example.com, but it doesn't seem to be working. Here's what's unclear to me:
  • What am I supposed to do after modifying my domains MX records? I did add the custom CNAME mail.example.com pointing to business.zoho.com, I added SPF records, and I enabled forwarding, but to no avail.
  • How am I supposed to log in to the users I created? I only know how to log in as the superadmin account I initially created. I tried to point my email client to myname@example.com, but it couldn't find the domain.
  • Is it possible to access myname@example.com through the world wide web, without using an email client?

Thanks in advance.