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SendGrid specializes in transactional and marketing email delivery at scale, providing the technical infrastructure that powers email communications for thousands of applications and websites. The platform excels at handling high-volume email sending with reliable delivery rates and detailed analytics that show exactly what happens to each email sent. Developers appreciate SendGrid's robust API that allows applications to programmatically send emails, manage contacts, and track engagement, making it the foundation for email functionality in countless SaaS applications. The platform's email validation and reputation management tools help maintain sender reputation, ensuring emails reach inboxes rather than spam folders. While SendGrid offers marketing email features, its true strength lies in technical email delivery, making it the preferred choice for development teams who need reliable email infrastructure that integrates seamlessly with their applications.

userfox is a SaaS product that helps companies improve user retention through welcome, inactivity and custom trigger based emails. We're building a company. Not a product, and certainly not a feature. We believe that making this clear matters. It sets expectations to ourselves and to our customers. We're based in sunny San Francisco, California.