I just recently installed LM and have been testing the mailings all along the set up process.
Set up my list settings, customized my welcome email, and added 6 follow up letters and tested each one as I went. By sending out previews and by going through the sign up form I've put on my site. Everything worked just fine.
Did one last test run before making the sign up form public...I register through the sign up form ok and my data shows up under the user data. But no emails..no welcome email and no follows.
Now I can't even get LM to send out a preview to me of any welcome or follow up mails.
And the "Test Mail Settings" is still successful.
Perry