My emails are all being marked as spam and so are everyone on my account. For 6 months I have been forwarding every single one to thisisnotspam@cox.net. When will this be fixed?!

My emails are all being marked as spam and so are everyone on my account.  For 6 months I have been forwarding every single one to thisisnotspam@cox.net, hundreds of them.  When will this be fixed?!  I keep opening a ticket and it keeps getting closed.  My board members and other important contacts are not receiving my emails.  I've turned off all my own spam filters incoming for the same reason: legitimate emails, even those that fall under my own account, are being marked as spam.  When will there be a real resolution to this?  I am seriously looking into changing providers for all my services currently provided by Cox because of the hours of time wasted and the lack of resolution.