AxCrypt will not send to any file to the user. You will send the encrypted file via(Gmail, yahoo)to other users/recipients.
I will explain about the key sharing features:
There is no need to share passwords in order to send or share files securely with others.
AxCrypt has a key sharing feature letting you add recipients by email address, who when they receive the file can open it with their own AxCrypt password.
Key sharing embeds the shared key into the file. The file must thus first be key shared with the recipient, then sent or file shared. Please note that AxCrypt does not share or send the actual file. To see a quick instructional video explaining how to use key sharing, please view https://www.youtube.com/watch?v=9z3KOZD-Yks .
Still, you are facing any issue, please write a mail to firstname.lastname@example.org. We are happy to help you.