Can't Verify Emails For Signing Up With A Website

People who sign up new accounts with www.kupika.com, can not verify any new accounts by verification of their email , the verification code fails to be emailed to the new users. Please see the example below thank you :) Please check your email Inbox for an email from Kupika. Enter the verification code that we sent to your email address: Email Address: heavendogsdad@hotmail.com Verification Code: If you have not received a verification code in your email Inbox, please check your Junk Mail or Bulk Mail folder. If it's not there: AOL or Comcast users: add staff@kupika.com to your whitelist before clicking the Resend button!