including affiliate links in autoresponders can be really annoying for your readers. I think it all depends on the kind of audience your website has. If you want to create a loyal audience, develop relationships and so on, probably you don't want to make your website impossible to browse and visit in a relaxed way.
I don't think you quite understood what I was trying to say. I meant that the program owners themselves are using your Clickbank affiliate ID in their follow up emails so you don't have to.
that's fine, well, I wasn't disapproving your post. Just thinking in general, but it's ok. I remember something similar in another forum, anyway.