I have a very strange & frustrating problem that I need help with, this problem has only started a week ago (before which all was working just fine)
I have a mac laptop & an ipad.
I have several email addresses., same on both.

My problem is I can send and receive on my ipad no problem,
however, on one particular email address on my laptop I can't receive any mail.
On this same email address I have trouble sending, here's the ridiculous part... the only way I can send is to set it up, press send wait a bit, then take the laptop off-line & off it goes - mail sent !!!!!!!!

What is going on?

If I click go to my mailbox tab up the top & go down the menu to get mail, this particular email mailbox is greyed out.

Can anyone please help, I've looked online for solutions, but found nothing like my problem.

Thanks in advance
mistysix