It's been more than 24 hours that I changed my MX records and still can't receive emails. Everything seems ok when I check on mxtoolbox. 

Could you help me on this?   Please see the error message below: 

Delivery to the following recipient failed permanently: 

info@sticraft.com  

Technical details of permanent failure: 

Google tried to deliver your message, but it was rejected by the server for the recipient domain sticraft.com by sticraft.com. [207.210.200.108]. 

The error that the other server returned was: 

550-Please turn on SMTP Authentication in your mail client. 

550-mail-la0-f45.google.com  [209.85.215.45]:33412 is not permitted to relay 

550 through this server without authentication. 

My other question is that there are different MX records for Zoho mail on Zoho help pages: 

First group: 
10 mx.zoho.com

20 mx2.zoho.com 

Second group

10 mx.zohomail.com

20 mx2.zohomail.com

Which one should we use for MX?