We signing up a new user to website we email the user received had the username and password changed to “https://linkprotect.cudasvc.com/url?….”. It turned out to be the new spam filter the client had put in was blocking the “username” and “password” being sent through the email. Below is the link to the Barracuda spam filter service. Below is the link to their spam filter.

https://ess.barracudanetworks.com

We are looking in a better answer for getting past this.