John,

Regarding your desire to host your autoresponder rather than using a paid service:

Here's something to consider....

Internet Service Providers love to "black list" marketers, even with double opt-in subscribers.....in particular, AOL will blacklist you if their customers report you as a spammer.

Bless their hearts, some people will sign up for an autoresponder series, use a double opt-in process, then report you for spamming them when they get tired of the messages.

In my experience, ISP's will not ever blacklist the large autoresponder companies like aweber.....so, even if you want to host it yourself, you'll have less trouble using an autoresponder company.

Just my two cents' worth

Chip