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UniOne operates on a reliable in-house infrastructure, allowing you to seamlessly send thousands of emails hourly using SMTP API without having to maintain your own SMTP servers. Setting up an SMTP connection with UniOne is so easy that it can take under 15 minutes for you to kickstart your email notifications and campaigns. Our expert team with 10+ years of experience in email delivery works day and night to ensure your messages reach their recipients while you can focus on other crucial aspects of your business.

Get the most of UniOne’s powerful email delivery infrastructure through our Web API. You can increase your sending speed to up to 60 million emails per hour while enjoying our robust Web API's extended functionality. With UniOne API methods, the crucial settings and analytics are always at your fingertips. You can manage your sending domains, handle separate projects, tag the campaigns, obtain statistics data in CSV format, validate subscribers’ email addresses, and do many other cool things with simple HTTP API requests.

Since emails play a significant role in many businesses, offering your clients a white-label API-based email delivery solution can be a competitive advantage. Whether you're a marketing agency, software development company, or telecommunications provider, UniOne provides the tools you need for success. You don't need to develop your own complex email infrastructure; UniOne's white-label Email API solution is ready for seamless reselling to your customers.