I have just set up a zoho mail account. I want to pick these up on my Mac using Mail, I have tried both imap and pop, but the speed of email delivery is woeful. I have just sent two test emails and 5 mins later they still haven't arrived.

If I check webmail they are there instantly. Also if I check web mail they get delivered to Mac mail too. What is going on?

I can't use this mail account if I have to log onto webmail every time I want to pick up an email.