Context.IO is Now Part of Return Path

We’re excited to announce we are now part of Return Path! We’ve joined forces with this innovative company to ensure our API has the long-term support it needs to scale and grow to meet the needs of our growing developer community. If you’re already a part of that community – great news, you don’t have to change a thing! Plus, scaling your app with us just became much more affordable.

Is Anything Changing?

Return Path’s support means Context.IO will accelerate its pace towards its mission to provide a unified, modern and easy API to integrate email data into your apps. For existing developers, nothing needs to change. All API endpoints remain the same and we’ll continue to support your apps as before.

For existing and new developers there is one significantly great change that will impact you immediately – and that’s our new pricing model. Joining Return Path has allowed us to vastly scale our free offering. As of today, developers can access up to 5,000 mailboxes for free (no more Basic Mailboxes; there’s only one type of mailbox now and it’s what we used to call the “Pro Mailbox”). This means apps integrating email data with Context.IO will now be able to do so at no cost well past launch.

Beyond the 5,000 mailbox point, you now have two options. First, you can simply continue to expand your user base at the low cost of $0.10 per mailbox per month (starting at mailbox #5001 and above). Second, if you anticipate or are ready to integrate a large amount of mailboxes, you can opt for our Premium API* access. For a fixed $5,000/month fee, you will have access to unlimited mailboxes and API usage, as well as priority support from our tech team, all backed by an SLA.

Not only will we work directly with you to integrate and scale your app with Context.IO, but we’ll ensure priority resolution of support tickets. Of course, all of our developers will continue to receive best-in-class customer service as they have up to now, but Premium API users will be considered crucial partners that will directly impact the expansion and growth of Context.IO and will be treated as such.

$1M Startup Innovation Program

Are you a startup out to change the way we interact with email? We want to help you get your Context.IO powered product in the hands of a massive user base as fast as possible, and a lack of funds should not be stopping you. Read more about it here

Who’s Return Path?

Return Path is the worldwide leader in email intelligence.  Return Path’s industry-leading email intelligence solutions utilize the world’s most comprehensive set of data to maximize the performance and accountability of email, build trust across the entire email ecosystem and protect users from spam and other abuse. Return Path has a reputation for helping businesses build better relationships with their customers and improve their email ROI and help ISPs and other mailbox providers enhance network performance and drive customer retention.

Why Return Path?

Return Path has been email’s ally for the last 13 years. We are excited to join forces with a company that shares our vision that email is not only here to stay, but is ripe for innovation. Return Path believes in our mission to make access to email data easy and fast for developers and allow them to build groundbreaking applications and tools that will improve productivity for all of us.

Are you guys moving out of Montreal?

We’re proud to say that our team will be remaining firmly planted in Montreal, Quebec. We’ll become Return Path’s official Quebec office, working closely with all of Return Path’s global network of offices, especially with the awesome development team in Austin, Texas.

Any questions?

We want to answer them all. Get in touch at and we’ll be sure to get back to you!

Read Return Path’s official announcement here.

We can’t wait to take Context.IO to the next level as a part of Return Path! Join us as we build amazing things powered by email!



  1. says

    Congrats to you and your team Bruno. It was fun being part of the ride with you. Very happy that you have found a long term partner committed to helping you grow your business.

  2. Bruno says

    Thanks Mark! It was great having you on board from the early beginnings with invaluable advice.