Cannot open emails to read

I can log into and se my email previews, but I cannot get them to open.

For the last 4 days I have had problems getting my email. It will either let me on and then spin spin spin when I try to open up an email or it wont send when I finally get in. Sometimes it says there is problem with the server or it is not available. It doesnt matter what computer I am on...my computer or any one of the 12 at work.My job requires consistent email access.I have not had conhsistent access for 4 days.I have called and the problem has not been fixed..Please help!!