I have a site that relates to a method that no longer works. These old methods where posted on blogs etc. and widely spread so naturely the commenters ask to be alerted when "they find a new method" Now, I can use ScrapeBox to collect all these emails but how do I email them out and let them know about my site? Should I hire someone? Attempt to blast it myself? since there are only probably 1.5k emails that I know of. Please note these people ask to be emailed Also, I use the word "method" just to be vague.