Can't receive any email, but can send out

Can't receive any email, but can send out

I am unable to receive emails to my address anymore. I was receiving them fine before today. I bought the domain with godaddy and had the email set up shortly after and it was working fine. Today, I purchased hosting with iPage and pointed the nameservers from godaddy to ipage. Would that affect receiving mail? I'm getting a 550 recipient rejected message when I do a test email.