I have an existing Wordpress website and a previous developer setup an email plugin that is currently non-functional (I think it is MyMail or Platinum Mail). I need an expert to help me either get that one working or advise me on a better plugin for my specific needs. I do NOT want to use Constant Contact or any of the typical companies in this field. I want everything self-hosted. I have collected almost 5,000 individuals who have registered to receive my newsletter update, but all show as "pending subscribers" and go right to spam if I try to send emails manually.
Also, if you have special skills that could help my email marketing effort, that would be preferred.