Please contact firstname.lastname@example.org more information on how to change your email address on Cisco.com. CSC is tied to your Cisco.com login. After you make the change on Cisco.com it will propagate here.
you can go to below link if you need do change your active email address in your Cisco account.
I also think that we need more control actions in the account settings. As well as more options for integration with other services and platforms, which allow to organize everything in your email accounts, like Purposeful messages service. It's pretty useful one, which I use to organize my IMs and email messages.