SMTP

Reliable email relay, API, and delivery service

SMTP has been a leader in email relay services for over 20 years. The brand is synonymous with the technology that facilitates the internet’s email engine. SMTP is the solution that powers transactional emails for thousands of the world’s leading brands. SMTP’s relay services help build a better IP reputation, optimize inbox placement rates and ensure messages reach your subscribers.

5K annual users

5,000 annual users

11B emails sent

11 billion emails sent annually

5,000/s sending velocity

5,000 emails per second sending velocity

Recent News

Yahoo! Finance  
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CBS News  
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Morningstar  
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