weblink in PDF opends email instead of web browser

Hello,

Whenever I click on a link in my PDF, it automaticly opends my mail and it puts the link in the CC. (e.g. if there is a link called 'www.google.com', it opends the mail-app and addresses the mail to 'www.google.com' whenever I click on it, instead of the actual site 'www.google.com'
How can I change this so the weblink actually opends my web browser?

thanks