We use Mimecast and can't seem to receive any test emails through constant contact.  I contacted our IT guy and he did some digging.  Apparently mimecast has blacklisted Constant Contact ?  I've been waiting on hold for a long while but no luck.  The other people I've talked to have given instructions on how to clear constant contact for OUR email addresses, but I'm trying to explain/ask if there's a way that constant contact can resolve the issue on their end.  We're not the only company that uses Mimecast so it doesn't help if we receive the emails but half of our customers don't. Has anyone else had this problem?  Any suggestions? ... View more