Love your plug in, it's exactly what this website needs.
using the newest plugin fm this week. Admins do get the emails, some subscribers get it, but others don't, I have tried to modify settings per your recommendations on this forum.
I tried the debug plugin because then I could possibly test it better. - no email at all was sent... deactived debug
I have been in touch with my host: fatcow.com settings are 500 per hour 5000 per day. I am sending from matching email on the domain.
I just bought the user's guide, and will go through it.
I'm happy to donate and get support. This is a private website with about 50 users http://www.footeslanehoa.com. We are only posting about 3-5 posts per week, just want the users to get an email when a post is posted.
I'm not a coder... :( yet that is.