Best Email APIs for Android

Authkey is a multi-channel CPaaS platform providing SMS API, WhatsApp Business API, Voice API, Email API, and Google RCS. It helps businesses send notifications, promotional messages, transactional messages, OTPs, 2FA, and more. Designed for responsiveness and ease of use, Authkey allows you to start without adding any credit cards. Authkey offers a free sandbox account for building, testing, and deploying. It supports easy-to-integrate APIs for all channels and over 1,000 automation options via Zapier, Pabbly, Integrately, and other partners. You can easily push bulk campaigns through all channels. WhatsApp Chatbot for intelligent customer query responses. Join over 200 active businesses working with us and grow together.

Tarvent makes email marketing and automation easier than ever. We are designed to be the easiest and most intuitive email marketing platform available, offered at a price everyone can afford. Tarvent simplifies advanced automation for marketers at all skill levels, helping businesses automate their processes, with 95% of our customers finding automations invaluable. Customers describe our interface as intuitive and the platform as simple and user-friendly, noting it's a powerful, affordable alternative to others. Our support is second to none, with 99% customer satisfaction, described by users as "great support," "stellar support," and "responsive support". Customers who switched from other platforms found our campaign builder, contact tools, and automation outshine competitors. Choose Tarvent for an intuitive, powerful, and affordable solution for all your email marketing and automation needs.

Reliable SMTP relay and email delivery services. Powerful email delivery services that enable you to send and track high volume emails effortlessly. Integrate and start sending in minutes. All your transactional, email relay and email delivery needs under one roof. Whether you need a low-latency email delivery provider for your transactional emails, scalable infrastructure for high-volume sends or reliable backend solution for your marketing campaigns, SMTP is built to deliver. Reputation Defender is SMTP’s proprietary technology that uses big data to proactively monitor your email list health and safeguard your domain and IP reputation among ISPs by suppressing bad emails in your sends from hard and soft bounces. This ensures your delivery rates and inbox placement incrementally gets better over time.