We deliver email.
Does your ESP?

One email or millions, we give you the reliability, insights, and expert support you need to feel confident your email is in good hands, especially during high-pressure times of the year.


Don’t let your ESP create chaos on another Black Friday or Cyber Monday. Try us instead — for free.

Use SocketLabs messaging APIs for all your email sending needs, available in C#, PHP, Node.js, Python, Golang, Java, and Ruby

Stay constantly confident

Send email via our flexible API, available in C#, PHP, Node.js, Phython, GoLang, Java, and Ruby

No ho-ho-hold ups

Our flexible APIs make sending email, real-time alerting, parsing, reporting, and more so simple you’ll just need to plug in and go. No advanced or back-breaking coding is required.


Plus, no matter which coding language you speak, we speak it, too. Fluently! 

The holidays aren't the time to sweat

Got your email in the cloud? Enjoy the breeze because our Hurricane MTA makes sending mail via SMTP oh-so-simple.


Coupled with our 99.999% system uptime and access to optimization tools, you need to take an SMT-Peek at the tools you’ll have at your fingertips.  

StreamMonitor allows you to monitor email performance across all subaccounts and offers issue priority scoring so you can identify accounts most in need of help first and receive next-step guidance within a few clicks.

'Tis the season to maximize performance

Used to driving the email car blind? So dangerous. When you drive with our StreamScore, you can send fast with clear insights, reliable gears, and a dashboard indicating the health of your program.


How? We crunch more than 35 data points to give you an at-a-glance score to help you map your journey, then take the wheel toward better, more effective email.

List Quality

Recipient Engagement

Reputation with Mailbox Providers

These folks get it

"SocketLabs is clearly driven by customer success and has become a trusted partner of SignUp.com"
Patrick Dyson
CTO, SignUp.com

"It was like a breath of fresh air having something that we could plug into in our environment, and make a few customizations, and be up and running in the blink of an eye."
Kevin Baker
Technical Director, eProductive

"We should have transitioned a long time ago. With SocketLabs, we're not just a number. I've got the name of a person I can ring up if I've got a problem."
Alec Dobbie
CEO, Fanfinders

"We always want to be at the forefront of the marketing automation world, and SocketLabs helps us do that."
Peter Malm
Email Specialist, APSIS

"We've been working together for at least 8 years, and we wouldn't trust anybody else with our email delivery."
Lindsay Willott
CEO, Customer Thermometer

"Ultimately, we realized that email is an incredibly specialized area requiring dedicated, expert resources. We saw vast improvement after switching to SocketLabs’ managed email service."
Jim Voss
EVP of Technology & Information Security, Bridgeline