Roundcube - Web-based IMAP email client
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.
Mailpile - Mailpile is a modern, fast web-mail client with user-friendly encryption and privacy features.
Sparkpost - Deliver your app and website emails on time and to the inbox. Trusted to send 25% of the world's non-spam email. Email delivery for companies big and small.
Horde - Horde Groupware is a free, enterprise ready, browser based collaboration suite.
Pepipost - Use our powerful Email APIs to deliver all your business critical emails on time and to the Inbox. We are the world’s only ESP that gives cashback on emails opened.