adobe reader, File Send service

I've had a problem with the field where one normally enters the email address where you want to send files.  Usually, the box is there and I enter the email address.  Now, suddenly, that box does not appear, so I can't enter a send to email address.

I can even add all of the files I want to send and click on "create link", but then I go to the box where you enter the email address, but it is not active.

I do remember that even when the email address field was active, once I hit "create link"  I would always get a pop up telling me I needed to make a change in email setup for Outlook.  I would click on OK, but it would send me to my own email page (I don't have Outlook).  Then,I would just go back to Adobe and wait until th files loaded, and it worked fine.