Is there not a way to use constant contact for your domain's DNS server and let them put in whatever records they want for all their email authentication BS. It seems reasonable to just get another domain that you don't use.. a domain just for sending out email from constant contact since any problems they always blame on your DNS records.. why not just use a domain with the name server's pointed to their DNS server and let them put in the freakin records instead of saying every time their is an issue that you need to once again go update your records.. it's ridiculous.