Yes, your Origin/ea.com email address.
It seems that, on looking further into this, that one can no longer change their origin/EA email address through the website. The way to get this changed is to contact EA support.
You may not wish to do this, so for now, your best bet is to contact us with a request to have the mail updated.
And yes, the Origin/EA accounts and swtor ones are linked. Updating one should be updating the other, but it doesn't appear to be in this case. Our notification mailer appears to be sending the notifications to the EA registered account, rather than the swtor registered one.
Sorry for the incomplete answer before, and I hope this info helps.
Ok thanks you, i just sended a ticket a second ago.