Should I use this mmail list to start with?
I have a question about email list building. I know we need a list to start with any kind of IM product. I have a big list of email but they are not any kind of opt in or anything like that. This list came from my ebay selling last year for electronics and accessories and this is from all over the world. Is it a good idea to use that list to start promoting product or it wont work as its not an opt in list? I am new in IM so I need your suggestion. Thank you