Mailing List and Forum Integration

Originally I posted this in the module development area, but it received no response there and I have since moved to getting quotes for paid development of a solution to this problem. Since I can't move the original post to this section, I hope reposting this here is ok:

I am working on a project at the moment that is going to involve a forum and a mailing list where users can email backwards and forwards between each other using the mailing list so everyone subscribed is able to contribute. The mailing list should then be recorded as part of the forum, so that users that prefer to interact with the list via a web browser can do so.

It will be running Drupal 6.x on a Windows server.

To my understanding, I should be able to accomplish this using a combination of modules so that users email the website, the email is recorded to the forum, the new post is then sent to the mailing list:

- Core Forum
- Advanced Forum
- Mime Mail
- Messaging
-- Messaging Mime Mail / Messaging PHPMailer / Simple Mail
- Notifications
-- Content Notifications
-- Mail to Web
-- Notifications Autosubscribe
-- Notifications UI
- Listhandler
- Mailhandler
- Token
-- Token Actions
- Poormanscron

Now, I have come up against a problem. I have Mailhandler and Mail to Web accessing the email account and retrieving mail with default commands set to add the retrieved email as a forum content type and add it to the forum taxonomy, however, despite the fact that they are retrieved, they are not being saved - which is a problem. I am not sure if this is to do with Mailhandler or Mail to Web, or somewhere else altogether.

The next problem I am having seems to be a combination of Listhandler, Mailhandler and Notifications. Listhandler and Mailhandler should handle sending an email to the mailing list email account Notifications lets them know what they are sending. Notifications lists a number of test notifications as sent in the Subscriptions Administer section, but they have not been received at the testing email addresses and as far as I can tell, are not being received at the mailing list email address either.

So I am quite stumped as to whats going on here. The server I am using to try and figure it out on at the moment is unfortunately not a Windows server, it is running Apache with cPanel.

Any tips or advice on what to try in order to find out whats wrong and how to fix it? Or any thoughts on a better way to do this?

As mentioned, this has now moved to getting quotes for development of a solution to this problem. If you have any questions or need more info, please don't hesitate to let me know.

Thanks in advance for your help, I look forward to hearing from you.