Unable to send Invite to other businesses. MX records updated 12 hours ago.

Unable to send Invite to other businesses. MX records updated 12 hours ago.

Hello, 

I set up my account 12 hours ago with MX records fully updated and am able to send/receive emails from my account. However when I was going to send invitation, it showed:

You can start referring other domains only after you change the mx records of your domain
            

Please help, I would like to setup new zoho accounts for other customers of mine.

Thanks !