i had her logon to the mail app, that did not help
found this:
https://www.minitool.com/news/fix-send-to-mail-recipient-not-working-003.html
used this:
Go to Start > Settings > Apps > Default Apps .
Press the Email option under the Email
Choose Outlook to set it as the default mail client.
i had already repaired, then uninstalled and reinstalled.
will see this is works, this is the setting that my computer has.
the error was that outlook was busy