Can someone recomend a affordable bulk email sending service

apart from the main players that charge a fortune eg : get response, mailchimp, active campaign id like to have the options to mass send unlimited amounts of emails per month as im expanding my mail list

does anyone have any sugestions ?

For the commercial solutions Sendy combined with AWS SES is the cheapest option if your list is pretty clean. If it isn't or if you are looking for total control and less costs in the long run then building your own smtp server running Postal or PowerMTA and sending the campaigns through Mailwizz or Mumara is the best bet but it's a lot of work!