The handle I signed up with is the only one that doesn't receive email

The handle I signed up with is the only one that doesn't receive email

I just set up my Zoho account. When it asked me what to use as my main email, I listed info@foxhazel.com. Another box asked what email I wanted to use, personally - so I used my name as the handle. Then I added three more addresses. I believe I successfully altered my MX files - I haven't tested all the addresses yet, but most seem to be working. EXCEPT for the info@foxhazel.com address! I try to send an email to that address and it immediately comes back as "undeliverable." Then I tried to delete one address and add that one and it said that that user already exists (though it does not list it in my user list).

I wanted to use the "info" email as the main email, but now it seems I cannot. Any ideas?