Best Email Marketing Software for Courier

Partner with the email service trusted by developers and marketers for time-savings, scalability, and delivery expertise. The Twilio SendGrid Email API and proprietary Mail Transfer Agent (MTA), intuitive console, powerful features, and email experts make it easy to ensure all your email gets delivered in seconds and without interruption. Whether you’re sending 100 emails or 100 billion, SendGrid is built to scale, while maximizing inbox placement and protecting your reputation as a trusted sender. Monitor engagement data and optimize deliverability with our Deliverability Insights dashboard. Integrate with our RESTful APIs and SMTP in minutes, with sample code libraries available in 7 languages, interactive docs, templates, and more.

OneSignal is the market leader for customer engagement. It powers mobile push and web push and in-app messages to more than 1 million developers and marketing teams. OneSignal is easy to set up and allows you to send push notifications to all your users. You can access powerful features such as segmentation, automated messaging and intelligent delivery. OneSignal is designed for developers and allows you to code in any language with any development environment. It takes less than 10 lines of code. It is also the most flexible push provider with integrations to top analytics providers and DMPs as well as Zapier to connect to 1400+ platforms and apps. OneSignal allows you to send unlimited messages to mobile subscribers and up 10K web push subscribers. 76% of top million sites that use push notifications use OneSignal (source: Builtwith).

Bird (formerly MessageBird), the next-generation CRM, is a powerful tool for marketing, sales, and payments. It powers over 5 trillion messages per year across Email, WhatsApp, and SMS. Bird helps leading brands grow more cost-efficiently through personalized interactions via Email, SMS, or WhatsApp. Bird's APIs and applications are used by the most innovative companies in the world to build communication solutions. Start today and communicate with your customers on any channel, for any purpose, anywhere in the globe. Marketing messages, push notification, order updates, shipping alerts, and more. Operational bottlenecks limiting your growth? Automated conversations and workflows can be used to collect critical information, reduce manual tasks, implement Self-Service flows, and route chats directly to the right agent. Our auto-scaling, reliable APIs are available with comprehensive documentation, complete API references, and intuitive SDKs.

Mailgun is an email automation tool that is suitable to developers. Mailgun allows users to access a cloud-based email service that can track, send, and receive emails via their websites and applications. Mailgun supports many programming languages, including Python, Ruby and PHP. Mailgun's tracking feature allows users to track all emails and reduce spam.