Sending

Email sending service.

Email sending service.

Email sending and marketing service.

A fast and reliable application email service.

Email sending and marketing service.

Get back to building your application, leave email to the pros.

Self-hosted application for accessing IMAP and SMTP accounts over REST API.

Connect your application to your users’ inboxes. No custom code required.

From campaign automation to customer experience analytics and insights, Acoustic helps marketing, IT, and digital leaders reimagine everything.

Marketing automation software for the full customer lifecycle.

The Customer Experience Automation Platform that helps over 120,000 businesses build meaningful connections with their customers.

Crie jornadas personalizadas conectando clientes à sua marca.

An email marketing platform focused on improving open rates through subject line testing and auto-resend.

Autopilot is a marketing and customer data platform for businesses who sell online.

High Performance Mail Transfer Agent Solution.

Email delivery software for people who need a smarter, more powerful send.

The MTA for large-scale email services.

Haraka is an open source SMTP server written in Node.js which provides extremely high performance coupled with a flexible plugin system.

Hurricane is built to perform, delivering billions of messages every year quickly and reliably.

Self-hosted email marketing software for sending and managing campaigns from your own server.

A small, elegant tool for producing newsletters.

Curate and send newsletters with sponsorships.

Open source. Send e-mail campaigns from a powerful dashboard. High performance and features packed into one app.

Platform for writers send free and paid newsletters.

Personal newsletter service brought to you by the people behind Mailchimp.

Engage your audience with marketing emails, email sequences, and embeddable opt-in forms.

Courier is the smartest way to design and deliver notifications.