About us
Letteros is a platform for creating and sending email campaigns. We make it so an email takes 15 minutes to build, not a week.
What Letteros is
You pick a template, fill it with content, test it and send — no hand-coding and no designer for every single email. Over time the platform outgrew email: the same editor is used to build presentations, banners, forms and documents.
What we do
Templates and editor
A template is a library of ready-made modules matching your brand. Drag the blocks you need into the workspace and assemble any type of email from them. A designer is needed once — for the template.
Testing and quality
Before sending, you can see how the email looks in real email clients. Link checks, responsiveness and dark mode — right inside the editor. Heavy images and code are flagged so the email is not clipped in Gmail.
Export and sending
The finished email exports to your mailing platform or sends straight from Letteros via the built-in Sender. Click maps and device stats live inside the platform.
More than email
Presentations, banners, forms and documents are built in the same editor with the same blocks. There is no need for a separate tool for every task.
Who we help
Marketing teams
Promos, roundups and email sequences without a designer for every send.
Internal communications
Onboarding, digests and surveys in one corporate style, built by an HR specialist.
Agencies
A stream of emails for different clients and brands, each with its own template.
Companies with privacy requirements
Letteros installs on your own servers, and email content never leaves the company perimeter.
The company
Letteros is built by Letteros LLC, a company registered in St. Petersburg, Russia, in 2021. The team, full legal details and ways to reach us are on the contacts page.
Want to see how it works?
We will walk you through the platform on your own tasks and answer your questions.