Volleyy - Easiest tool to create responsive newsletters.
Revue - The easiest way to create and send a curated newsletter
Minutemailer - Email Marketing. Simplified.
MailerLite - Affordable Email Marketing Software. Get all features (Segmentation, Automation, A/B testing) for up to 1,000 subscribers & send unlimited emails for free!
Mailchimp Automation - Marketing automation for everyone.
GetResponse - Email marketing from GetResponse. Send email newsletters, campaigns, online surveys and follow-up autoresponders. Simple, easy interface. FREE sign up.