Mass Mailing

Made further enhancements to the mass mailer script. Now both text and html newsletters are converted to QP and sent using a file drop. This means CDO is no longer used. The biggest benefit is that now I don't have to worry about using a different method depending on the format, simplifying things a bit. I could probaby even simplify a little more. I think in the end this will give me a little more flexibility in customizing the newsletters. I've already done one customization where the user's e-mail address is now included as part of the body of the message. Not only will this help the subscriber identify what e-mail address they used to subscribe, it will also help me in cases where remote MTAs modify the recipient information (which is rare but still an occasional problem).