To build and check R packages on R-hub, you need to validate your email address. This is because R-hub sends out emails about check results.
validate_email(email = NULL, token = NULL)
The email address to validate.
Token obtained from
rhub package stores validated email addresses in a user
configuration file, at a platform-dependent location.
On your current platform the file is at
To validate a new email address, call this function from an interactive R session, without any arguments.
To add an email address that was validated before (probably on another
machine), to the configuration file, call this function with the
Other email validation: