About Sendloop Sending email for businesses since 2008
Sendloop is built by the team behind Octeth, which has made email marketing software since 1999. Today 36,000+ businesses have used Sendloop, and the platform sends more than 2 billion emails a month.
- businesses have sent with Sendloop
- 36,000+
- emails sent through Sendloop every month
- 2B+
- building email software, since Octeth in 1999
- 27 years
Our history
27 years of email software
Sendloop is one of several products we have built, starting with on-premise email marketing software in 1999. Each one taught us something the next one uses.
- 1999
Octeth
Our first email marketing software, and our first customer, in Hong Kong. Octeth was one of the first enterprise on-premise email marketing software products, and it is still running today.
- 2003
Mailium
A simple, powerful on-premise email marketing tool for individuals and email marketers.
- 2008
Sendloop
Email marketing as a self-service product for small businesses, built on everything we learned from Octeth and Mailium.
- 2009
PreviewMyEmail
Real-time email analytics and inbox previews for email services, acquired by SMTP, Inc. in 2013.
- 2011
SenderSuite
A transactional email gateway for e-commerce and apps. It became part of Sendloop in 2015.
- 2026
A new Sendloop platform
Email, SMS, journeys and transactional email in one account at my.sendloop.net, priced by the emails you send.
How we work
What we hold ourselves to
Plain pricing
You pay for what you send. No charge per contact and no surprise overages: sending pauses at your allowance.
Honest numbers
Our reports say when open rates include privacy-proxy opens. We would rather you trust the figure than like it.
People who answer
Our team answers every message, and the people who build Sendloop read support.
Teams that have sent with Sendloop
Your list can grow. Your bill doesn’t have to.
The Free plan includes 100 emails a month. Upgrade when your volume grows.
