I just figured out that we got an e-mail, but to a different e-mail account. I have one e-mail address in my HN profile, and I gave a different e-mail in the application.

However, the rejection e-mail was sent to e-mail from HN profile. So, make sure you check that one. It looks like the e-mail address in your application is not used.

yes I have checked the one that's shared in the HN profile. But still no email to me.

+1 the not yet rejected part