Validation problems

I am working on an email blast.

When I put a web page in as a link, I get the message about providing a valid link.  It appears to check for .com at the end of the URL.  My link is a bit.ly/link that doesn't end that way.

I have a similar problem with an email I am trying to send with a link. The system doesn't except the email address. Again I speculate it is checking that it ends in .com.  This user's email link is in a .edu domain.