How to recover your google analytics account connected email address from the account id?
It appears that losing access to your google analytics account is not an uncommon problem. One of our clients recently came to us with this problem that they do not know the Google account connected to the google analytics id used in their website. Google analytics does not have a direct interface through which you can request a reset password or send reminder email to the connected email address. However there is a solution to the problem.
Google product forum lists 100s of similar requests by Google Analytics users who have lost access to the linked Google account. The suggested approach to the problem is listed clearly here in
Account Recovery Process for Google Analytics
You will however need an adwords account to take this through. You can initiate contact through the Adwords support system from the following URL
Hope this helps.