SMTP

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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.

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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  
"VIPRE's specialized detection technology brings a unique layer of insight to the Microsoft ecosystem, helping customers stop the kinds of sophisticated phishing and BEC attacks that often evade traditional filters. We're proud to be a trusted vendor within Microsoft's ICES ecosystem and to contribute our deep email security expertise to strengthen protection for millions of Microsoft 365 users worldwide," says Usman Choudhary, General Manager, VIPRE Security Group.
Yahoo! Finance  
RetailMeNot, a ¶¶ÒõÆƽâ°æ company, today kicks off its annual Spring Savecation travel event, running March 5-9. The limited-time event helps travelers save on everything for their next getaway - from flights and hotels to luggage, apparel, beauty and more. Shoppers can unlock deals from top brands like Expedia, Gap, Samsonite, Puma, Ray-Ban and Ulta, offering curated deals and cash back rewards in one convenient destination.
Morningstar  
"Our goal is to make complex healthcare decisions easier for patients and their healthcare providers. By combining current outcomes data with the vetted expertise of Top Doctors, we highlight hospitals that truly excel in specific procedures, supporting patients in their most critical healthcare decisions." Steve Leibforth, Managing Director Castle Connolly.
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