Respuesta :

Outlook will put the meeting automatically on your calendar.  By default, Outlook deletes  meeting request mails once you've accepted the invitation.  But if you want to keep a copy of the email, the default setting must be changed :

1. On the Tools menu
2. Click Options
3. Click E-mail Options
4. Click Advanced E-mail Options. 
5. Clear the Check mark from the Delete meeting request from Inbox 
when        responding.