Years ago I signed up for a free Geocities mail account. Then Geocities got bought by Yahoo, and it was converted to a Yahoo account, for which I now pay.
By default Yahoo set an alias from my old Geocities mail account to my new Yahoo one. This is still alive, but I never, ever use it.
My problem is that the geocities address got onto some terrible spam list - 99% of the mail I now receive is from this alias, and it’s driving me mental.
Does anyone know how I can disable it? I’ve mailed support at Yahoo several times, but received no reply.