How many auto responder e-mails do you have per project? Would jut having a set amount be enough or do I have to keep adding new e-mails very often after the first initial few have gone through
I try to set up my emails long in advance. Usually I have the confirmation email (for double-optin), then the email with the actual product that they ordered. After that I load the autoresponder with about 6 emails, to be sent every 2 or 3 weeks. Most of those will have a freebie in them. I find that most of my list members stay around and they are very responsive when I broadcast an offer or a service.
test small sample of your recipients.... if they respond poorly.. rewrite those emails.. do A/B testing until you find the optimal one. and yes.. do not send out those emails too frequently you may just upset some of folks if you have all the permissions
The best advice I can give you is to set up sort of a newsletter for the first few messages you send to your subscribers, don't spam them with email or they will unsubscribe. Make a 10 articles on tips or good content related to your niche, then add additional emails about other information as well as products and services.
Don't just sell to them. Give them content they can use and will remember you for. If they get even a whiff that you're just there to sell, they'll drop you like a bad habit. Make sure your subject lines are attention-grabbing, so they see you and read you.