iCloud - Mail Inbox not showing old messages
Inbox messages from 04/13/16 and older are not appearing in my iCloud Mail. Everything else is in order, except those messages. The messages have disappeared so I can't search for older inbox messages. I changed my Apple ID from an email domain to a gmail account because I stopped using the domain, does that affect in some way my inbox messages?
Where can I find those messages?
I do not think that it's software related since I have my devices synchronized and I am getting the same inbox messages in all. But if you need some info:
Macbook Air with OS El Capitan
iPhone 6s Plus
iPad 2