4.5 out of 5 stars

Bulk email or high volume transactional email delivery.

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What is

SMTP’s relay service infrastructure can solve your delivery issues — quickly. We maximize the number of emails that reach recipients’ inboxes by using our own IP addresses and monitoring your emails for anti-SPAM compliance. By improving your deliverability you’ll see improved ROI. Engagement rates will increase and you can use your resources more efficiently - to get the highest return on every marketing dollar you spend.

To ensure the best deliverability, our Responsive Delivery system constantly monitors bounce rates and adjusts the parameters of your email delivery to ensure that your bounce and complaint rates stay at a minimum.

SMTP’s relay services are as easy to use as they are effective. Our cloud-based service for email delivery enables you to easily begin using the service without the need for additional hardware or software.You control all aspects of your sending and can review your campaign statistics through your dashboard.

With SMTP's Relay Services, you get:
-Superior deliverability: Our experts closely examine your unique needs and serve as your guide and “interpreter” for ISPs that may be blocking your delivery.
-FREE 24/7 support: You have unlimited access to phone, chat and email support, and a dedicated team of specialists will work to ensure all your service needs are met.
-No contract: You can sign up month to month and try out our service. Our terms are highly flexible, so you can downgrade or upgrade your account anytime at no risk.

Relay Service Features:
-White-listed IP addresses
-Email authentication
-Proactive monitoring systems
-ISP feedback loops
-Shared or dedicated IP addresses
-Email delivery rates consistently in the 90th percentile
-Robust analytics and reporting
-Email delivery statistics, including bounce rates & delivery confirmation
-Flexible API: Integration for IT and Developers

SMTP’s cloud-based service also includes an SMTP API, enabling IT professionals and developers to easily integrate web applications based upon the cloud platforms. Details Provided by: Wendy G. Details Provided by:

Marketing Professional
Languages Supported
Afrikaans, English, German, Hindi, Russian, Spanish, Ukrainian Screenshots


How do you position yourself against your competitors?

--World class deliverability engine
--The pioneer of SMTP relay services
--Responsive Delivery monitoring deliverability in-real time
--Robust analytics and reporting dashboard
--FREE 24/7 phone, chat, email support
--Dedicated account managers

j2 Global
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Year Founded
Total Revenue (USD mm)
HQ Location
Los Angeles, CA
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