I am using an autoresponder software (Interspire Email Marketer), and installed on one of my site. Now, I am getting around 30-40 email subscribers per day, if it goes grows more than 1000+ in some days, will I get any problem with my hosting? As because of sending 1000+ at a time will be an issue with the hosting company, I think so. I am not sending any spam emails, all are double-optin email subscribers. How can I be safe with my hosting? I do not want to get trouble after getting 1000's subscribers on my list later on.