Each email is 1 contact. If you import the same unique email address it will NOT duplicate the email address instead it will update the existing email address. The system always checks for existing email addresses and only then updates them. If there are any duplicate copies, there will be many emails for the same emails.
Hence as discussed above, there is NO duplicate copy of emails if we try to upload the same contacts.
Hence as discussed above, there is NO duplicate copy of emails if we try to upload the same contacts.
