Automatically upgrades your outbound user notifications to use the best channel for each user. Email, mobile push, in-app, SMS, or chat — all from a single API. | It is an open source IMAP and POP3 email server for Linux/UNIX-like systems, written with security primarily in mind. It is an excellent choice for both small and large installations. It's fast, simple to set up, requires no special administration and it uses very little memory. |
Drag & drop content without writing code;
Consistent rendering across every email client;
Re-use content for any channel;
Consistent branding across all your notifications | Flexible authentification; Easy migration; Self-optimizing |
Statistics | |
Stacks 17 | Stacks 49 |
Followers 22 | Followers 52 |
Votes 0 | Votes 0 |
Integrations | |

OneSignal is a high volume push notification service for websites and mobile applications. OneSignal supports all major native and mobile platforms by providing dedicated SDKs for each platform, a RESTful server API, and a dashboard.

PushCrew enables any website to send push notifications to their users (even when they are not on the website). A simple JavaScript code makes it working on any website in less than 2 minutes. It's a fantastic new alternative to email marketing.

It is a push notifications platform for Web and Mobile. It is very fast, GDPR compliant and full-featured. It supports all major native mobile and web platforms, provides a RESTful API and an online dashboard to design notifications and analyze their impact.

Send website notifications directly to the desktop when new content is fresh from the oven.

It is a free and open-source mail transfer agent that routes and delivers electronic mail. It is Wietse Venema's mail server that started life at IBM research as an alternative to the widely-used Sendmail program. Now at Google, Wietse continues to support it.

It is the centerpiece of the remote notifications feature. It is a robust, secure, and highly efficient service for app developers to propagate information to iOS (and, indirectly, watchOS), tvOS, and macOS devices.

It adds scheduled sending and the easiest, most integrated email reminders to Gmail, helping you reach Inbox Zero.

Tutorials, API references, and other documentation show you how to set up and send push notifications from any backend to any mobile device

250ok is an email deliverability tools company that produces a Software‐as‐a‐Service (“SaaS”) platform to monitor and measure the deliverability of email networks. These networks consist of companies sending various forms of messages including marketing, transactional, share, and others from various platforms.

It is a web server to push data to a browser, without the browser explicitly requesting it. It is an umbrella term, encompassing multiple techniques for achieving this interaction.