Reviving this thread because I came to to ask this question. However, the response given does not seem to apply in my case. I scheduled a send for 20:00 GMT, which is the time zone of my blog, at 20:44 nothing has sent and it is still showing as ‘Scheduled’.
I followed the steps in the set up and have read the tutorials, test messages did send, so I’m stumped.
One thing that did concern me though, is that all confirmation emails went straight to junk mail on the 3 emails I tested with. Given this is a fresh domain and has had no issues with emails going to junk folders, can anyone shed light on this also?