Unopened status, tell-your-friend link being reported as spam

Unopened status, tell-your-friend link being reported as spam

I am getting bounce backs when sending test emails. The message in the bounce back notification is as follows:
"A URL in a recent email campaign (tell-your-friend . com) is listed on https://spamrl.com/."  This is causing emails to not be delivered. If you check the following link:   http://mxtoolbox.com/SuperTool.aspx?action=blacklist%3atell-your-friend.com&run=toolpage, it comes up as a blacklisted address. Please advise how to resolve this issue as I think it is also affecting deliveries of other emails, causing them to have an unopened status.