MailChimp - MailChimp is the best way to design, send, and share email newsletters.
HubSpot - Grow Better With HubSpot: Software that's powerful, not overpowering. Seamlessly connect your data, teams, and customers on one CRM platform that grows with your business.
Brevo - 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.
GetResponse - Email marketing from GetResponse. Send email newsletters, campaigns, online surveys and follow-up autoresponders. Simple, easy interface. FREE sign up.
Campaign Monitor - Email marketing software built for designers and their clients to run successful email campaigns.
Cakemail - Email marketing and transactional emails that deliver. Try it for FREE!