Hey all,   I have a client who would like to use our services for the following: Would it be possible through CC?   We are wanting to handle our “transactional" emails through Constant Contact.   Here's how it works: When people register top use our app, we acquire the email and ad them to our registered users list at Send Grid. When a person wins a prize in one of our sweepstakes, we alert them of the “win" via email. This can be anywhere form 10 to 10K email in an evening.   We do all this at SendGrid. Can Constant Contact Handle this?   And yes it is his own App, not a third party If anyone will help I would appreciate it! ... View more