Best Email APIs for Google Calendar

Reliable SMTP relay services and email delivery services. You can send and track large volumes of emails with ease using powerful email delivery services. In minutes, integrate and you can start sending. All your email delivery, transactional and email relay needs are covered under one roof. SMTP can deliver whether you need a reliable backend solution or scalable infrastructure to handle large volumes of emails. Reputation Defender, SMTP's proprietary technology, uses big data to proactively monitor and protect your email list health. It also suppresses bad emails from soft and hard bounces in order to protect your IP reputation and domain. This will ensure that your delivery rates and inbox placement gradually improve over time.

Unipile serves as a consolidated API that facilitates the integration of various communication methods, including messaging, email, calendar functionalities, and more, into your software solutions. It boasts an extensive array of over 500 endpoints, allowing developers to unify platforms like LinkedIn, WhatsApp, Instagram, Gmail, Outlook, and IMAP into a cohesive inbox. With the capabilities of Unipile, users can effortlessly send and receive messages across different channels, handle calendars for both Google and Outlook, sync conversations in real time, and keep a complete historical context of interactions across all platforms. This API encompasses features such as initiating chats, accessing message threads, organizing events, and linking profile information, all through a single interface. Potential applications include software for ATS/CRM, outreach tools, no-code platforms, and AI agent services, making it ideal for any scenario requiring multi-channel communication integration. Additionally, Unipile prioritizes quick integration, provides user-friendly documentation for developers, and offers live support to assist users effectively. Its versatility makes it a valuable tool for enhancing communication within various applications.