When signing up for Reclaim using your Google account, Reclaim will use that account's email address as your primary login for your Reclaim account. All other email addresses will be a sync source.
Email associated with multiple accounts
An email address can be associated with multiple Reclaim accounts, but it can only be a Main email for one Reclaim account.
If an email is used as the primary email for a Reclaim account, it can only be used to log into that Reclaim account.
An email is a sync source for multiple accounts
If an email is a calendar sync source in more than one Reclaim account, but isn't a Main email for any Reclaim account, logging in using that email will prompt you to create a new account.
Logging in using [email protected] will prompt you to create a new account.