Sendy - Sendy is a self hosted newsletter app that sends emails 100x cheaper via Amazon SES
MailChimp - MailChimp is the best way to design, send, and share email newsletters.
MailerLite - Affordable Email Marketing Software. Get all features (Segmentation, Automation, A/B testing) for up to 1,000 subscribers & send unlimited emails for free!
SendInBlue - Innovative online Email Marketing solution to manage your contacts, create & send your newsletters and track your results. More than 80 000 clients. Best prices and attractive features.
SendPulse - Maximizing e-mail marketing open rates automatically
ActiveCampaign - Integrated email marketing, marketing automation, and small business CRM. Send beautiful newsletters, setup behavioral based automations, and benefit from sales automation.