Create and Send Email in Outlook

Choose New Email to start a new message.
Enter a name or email address in the To, Cc, or Bcc field.

If you don't see Bcc, see Show, hide, and view the Bcc box.
In Subject, type the subject of the email message.
Place the cursor in the body of the email message, and then start typing.
After typing your message, choose Send.

In the body of the email message or calendar invite, enter the @ symbol and the first few letters of the contact's first or last name.
When Outlook offers you one or more suggestions, choose the contact you want to mention.

By default, their full name is included. You can delete a portion of the mention, for example, everything other than the person's first name.
The mentioned contact is added to the To line of the email or the meeting invite.

Additional Microsoft resources