MX records not working and neither is SPF

MX records not working and neither is SPF

I purchased a domain and hosting (cpanel) to use with Zoho:  delcanto.pro. I'v previously used Zoho mail for other clients and I've successfully set up their accounts, so I decided to try it out for my individual business account. 

However, I cannot get the MX records to work. I've done exactly as per the instructions, I have only 3 MX records, all set up correctly, but I cannot receive email.  Only send.

Regarding the SPF, I've already set up the SPF for cpanel with some instructions I've found online, but it doesn't work either. This is the thread I've referred to, to set up the SPF:  https://help.zoho.com/portal/community/topic/how-to-configure-spf-records-in-cpanel

I am sure I did everything correctly as this is not the first time I setup a Zoho account with Cpanel.

I need to purchase another business email for a client over the weekend but if cannot get mine to work, I'll be stumped.

I really need help. 

Thank you!