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鈥檚 email engine. SMTP is the solution that powers transactional emails for thousands of the world鈥檚 leading brands. SMTP鈥檚 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

CBS News  
The Orion capsule of the Artemis II mission is now headed back home for a splashdown off the coast of San Diego, California, on Friday night. Tim Werth, Tech Editor at Mashable, joined CBS News to discuss the crew, who are embracing tech and social media in a whole new way.
Morningstar  
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TechRadar  
In the report, Ookla put Apple鈥檚 C1X modem 鈥 which you鈥檒l find in the iPhone Air 鈥 through its paces. And as the results show, its performance is so good that Ookla believes Apple fans are getting 鈥渢rue download parity鈥 with Qualcomm鈥檚 market-leading X80 chip. Compared to iPhones with the X80 and those using Apple鈥檚 previous-generation C1 chip, Apple has 鈥渟et new standards for network latency,鈥 Ookla believes...According to the benchmark results, the iPhone Air鈥檚 C1X outperformed the iPhone 17 Pro Max for latency in 19 out of the 22 markets that Ookla tested.
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