iCloud Mail on different Apple Products not working

I am having an issue accessing my iCloud email on my phone, MacBook and iPad. Each time I try to access my mail it keeps saying " the connection to the server has failed. Server message " Server busy please try again later". This has been going on for the last past hour. I even tried to log on via safari - and no luck. I also checked the status of the platform on the Apple Support to see if any issues were reported- and it currently has a green dot beside iCloud Mail. I am not sure what else to do; but I do need access to my email as I have some important documents that are arriving that I need to e-sign.