Sending a new e-mail clears the inbox

Sending a new e-mail clears the inbox

Every time I send a new e-mail via outlook 2013 it clears completely the inbox in the outlook and webmail.
It only happens when I write a new e-mail. No problem on answering a received e-mail.

All the e-mails are in the ehxibition folder and I have to move them back to the inbox.

How do i solve it?