Is it possible to get an IG account back with original mail

Hello, I bought an account a few months ago and I didn't get the orginal creation email address.

In the history of the account, I can see that many different email adresses were used. I changed the mail twice and I keep thinking about : Is there a way the person with the original mail could retrieve the account ?

If he can, how would he do it ?

Thank you

If you’ve set a new email, the old email should not be able to request password reset.
Just to be on the safe side, make sure you connected your mobile number to the account and logout all other sessions by changing your password again.

Yes, the person who has the original email will ALWAYS have the ability to claim it back.
He just needs to contact support and say his account was hacked (which is not even necessary since you get an email from Instagram that the email was changed and there is a button to revert it).

Try activating 2FA to make it a bit harder for the previous owner but the truth is that he can claim the account at any point. Never buy an account without original email if you care about it (so, no bruted accounts for empty ones too, unless it's for spam).

Always change EVERYTHING. even recovery email and phones of the primary data