I just installed MassMail. It is not sending out emails. I urgently need to send emails out to members on particular subscription plans by tomorrow. I have a small test group subscription plan (Admin-test) with two members. Email on site works ok tested by contact form. I've tried Global and SMTP without success in sending a test message trialed a variety of settings. I've completley uninstalled and reinstalled Massmail without any effect. Messages shows 0 of 0. I also tried Resume without success.
I welcome your advice!