Looking forward to trying it, however requested an invite and the scanner on the Thank You screen mentions my @gmail.com account got a thumbs down for Deliverability and being 'weakly secured'. Kind of a bold statement to make about gmail, no?
I appreciate your interest. :) That check looks for blacklisted IPs of your provider. Gmail is blacklisted very often, thus making deliverability of your messages to some servers lower. Might be a poor wording on our side. We'll take a look at that.
