When I reclaimed my 2005 (this) account, I left my 2021 account and never touched it again.

However, I need to remove my email from my 2021 account, so I can use it for my current 2005 account.

Can I request an admin to remove my email from my 2021 account?

Or, if I have to do it, do I need to notify an admin before I log in to my past 2021 account? I was told not to login the 2021 account again after I reclaimed my current 2005 account.

Thanks in advance.

Can you change your email on your 2005 account to your current one? Or does it say this email is currently in use?

Your best bet is to use the contact form here: https://forums.d2jsp.org/contact.php

Yes, it does say email is currently in use, because I used my primary email for the 2021 account, which is discarded at the moment.

Gotcha! Then the contact form is definitely the best way to go

Thank you, I will.