Cant get .mac mail on iOS devices
I have 3 Apple mail accounts, .mac (primary), .me and .icloud.
I have a macbook pro, an iPhone6+, and an iPad Air.
I can send mail from all three.
I can get mail to all three accounts on the Macbook.
I can receive mail to .me and .icloud accounts on iPhone & iPad
But cannot get mail addressed to .mac account on either iPhone or iPad.
Using iOS 8
How can I correct this please.
iPad, iOS 7.1.2