If the number of contacts on Mynewsdesk after import is smaller than the number of names in the imported file, this may be due to contacts in your list
– without email address
– with invalid email address
– that hold duplicates within your list
– that are already saved to Contacts in your newsroom
– who have previously opted out from from Mynewsdesk

Please also see:
Import contacts into your lists
How do I add contacts?
Why is my file not being imported?
How do I add or remove an existing contact to/from a contact list?

Or learn more about Contacts in our Guides