How to create a dynamic link with email address for an external site?

I’m trying to connect a button that’s on a job application form to an external site, however, I want the link to have the current users email address so that the user does not have to input their email address again in the external site.

Example of the link I want: mysite/iqtest/UserEmail

Perhaps you are searching for …
https://www.wix.com/velo/reference/wix-location/queryparams-obj