Hi! You can add extra email permissions to your account here: https://itch.io/user/settings/email-addresses
But I can also send you your personalize download keys just in case. :)
I would really like to do that and I tried several times, but unfortunately this is not possible because the email address I use on Kickstarter is somehow still connected to an old itch.io account which I deleted some time ago. Thatswhy I can't add this email address to my new itch.io account. Would you please be so kind to send me a personalized download key instead?