Sortd does not store your email, but certain email information such as the Sender, Subject and Date are stored in Sortd when you drag an email into the organiser panel. We do not store the actual email, nor we do we store any information about your email unless you drag it into a List (and then only the information mentioned above).
For more information on the permissions required by Sortd and other security related concepts please see the Security section of the Sortd Privacy Policy.