There is a known issue with the site's forms. The forms which send information to the site's email addresses work well. The form "Share with a friend" functions OK, but the email often doesn't reach the intended recipient. This is due to the fact that many major email systems (Google mail as an example) block the mail sent from my server, considering it a spam mail. I am trying to resolve this issue for some time now, but hasn't gotten any results. Please be patient and just send your friend a link to the site manually.
If you need to refer a specific webcam you can send a link looking like this:
https://ip-24.net/webcams.php?id=1234 (change 1234 to the webcam id you want).