How to know the email (not icloud email) linked to Icloud/Apple ID

Hi,

I forgot my password for my account (t****@icloud.com), forgot the answers of recovery questions and phone purchasing receipt. There is only way to reset is sending reset link to email.

But, I do not use this email, so I cannot login icloud mail to reset. And because I has created many gmail/yahoo accounts, so I do not rememer which one is linked to this Apple ID.

How can I know which gmail/yahoo mail linked to my icloud account? Thanks.

mutit