Link in message bird message never deliverd

Question

Hi i would know how make my links work in my SMS with MessageBird

I send messages like this:

message = "Hello http://foxfinder.fr/documents/"[email protected]_s+".pdf"
            client = MessageBird::Client.new('KEY')
            client.message_create('FoxFinder', '+33647654886', message, :reference => 'Foobar')

When i dont add link the message is send and delivered but when i add a link with a '/' in it, the message is send but never delivered

UPDATE

I solve the problem, it was security check from messagebird, you need to contact support to allow links in your message