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Litmus pricing, and what the rendering check costs here

We have not checked Litmus's current prices, so this page prints none. Emailens checks your email before your client opens it: a free account shows every email in all 21 simulated inboxes (five without an account).

The checker needs a computer screen.

Litmus is the better tool if

  • You read campaign analytics after the send. Emailens stops at the send.
  • Your team builds emails in a drag-and-drop editor and signs them off in proof rounds. Emailens has neither.

Emailens is the better tool if

  • You write emails in code (HTML, React Email, MJML or Maizzle) and want to see which CSS fails in which client, with the engine's fix (Free).
  • You want a pull request to fail when an email breaks in Outlook (GitHub Action, Pro).
  • Your AI coding assistant writes emails and should check them before it hands them over (MCP server, Free).

Do you keep real screenshots? Paused for now.

Real-device screenshots are paused while we move them to a new provider; they will be back on Dev and Pro. Here is the Emailens probe for one feature on real installs, beside our simulation.

border-radius:

Works in 16 of 21 · partial in 4 · not supported in 1

Three clients, picked by one rule: the one where border-radius is not supported, one where it is partial, one where it works. Where it is supported you should see rounded corners.

Outlook Classic

caniemail: border-radius is not supported in Outlook Classic.

  • Outlook 2019 (Windows), real install · counted as Outlook Classic

    The Emailens probe for border-radius on a real Outlook 2019 (Windows)

  • Outlook 2016 (Windows), real install · counted as Outlook Classic

    The Emailens probe for border-radius on a real Outlook 2016 (Windows)

  • Outlook 2007 (Windows), real install · counted as Outlook Classic

    The Emailens probe for border-radius on a real Outlook 2007 (Windows)

Emailens simulation of Outlook Classic

The same probe in the Emailens simulation of Outlook Classic
Yahoo Mail

caniemail: border-radius is partly supported in Yahoo Mail.

  • Yahoo Mail, real install · counted as Yahoo Mail

    The Emailens probe for border-radius on a real Yahoo Mail

Emailens simulation of Yahoo Mail

The same probe in the Emailens simulation of Yahoo Mail

Partial support. Shorthand for setting elliptical borders with the slash / notation is not supported e.g. border-radius: 27% 73% 70% 30% / 30% 34% 66% 70%;.

Outlook for Mac

caniemail: border-radius works in Outlook for Mac.

  • Outlook for Mac, real install · counted as Outlook for Mac

    The Emailens probe for border-radius on a real Outlook for Mac

Emailens simulation of Outlook for Mac

The same probe in the Emailens simulation of Outlook for Mac
Also captured, not counted as evidence (2)

  • Outlook for Microsoft 365, real install · not mapped to an engine client yet

    The Emailens probe for border-radius on a real Outlook for Microsoft 365

  • Gmail (web), real install · not counted as Gmail

    The Emailens probe for border-radius on a real Gmail (web)

    This Gmail install does not apply Gmail's sanitiser, so it shows more than real Gmail does.

border-radius in every client →

The fix for Outlook Classic

Use VML to render rounded buttons in Outlook

after 
<!--[if mso]>
<v:roundrect xmlns:v="urn:schemas-microsoft-com:vml"
  href="https://example.com"
  style="height:44px; v-text-anchor:middle; width:200px;"
  arcsize="14%" strokecolor="#6d28d9" fillcolor="#6d28d9">
  <w:anchorlock/>
  <center style="color:#fff; font-family:Arial,sans-serif;
    font-size:14px; font-weight:bold;">Click Here</center>
</v:roundrect>
<![endif]-->
<!--[if !mso]><! -->
<a href="https://example.com"
  style="background-color: #6d28d9; color: #fff;
         padding: 12px 32px; border-radius: 6px;
         text-decoration: none; display: inline-block;">
  Click Here
</a>
<!-- <![endif]-->
Show the original
before 
<a href="https://example.com"
  style="background-color: #6d28d9; color: #fff;
         padding: 12px 32px; border-radius: 6px;
         text-decoration: none; display: inline-block;">
  Click Here
</a>

The checker needs a computer screen.

A free account opens all 21 clients and keeps your checks for 7 days. Create a free account →

What it costs

We have not checked Litmus's current prices. Their pricing page ↗

Emailens, by what you need

A free account: 30 checks a day in all 21 clients, kept for 7 days.

The pull-request gate and unlimited checks

GitHub Action (Pro). Pro is $19 a month. The pre-send gate in CI, and the history behind every check. See the plans →

Sandbox SMTP and the API

Sandbox SMTP (Dev). Dev is $9 a month. For one developer: 100 checks a day, an API key and a test inbox. See the plans →

Row by row

Rendering check
Every email in all 21 simulated clients (Free; five without an account)
Litmus: not checked
Real-client screenshots
Paused while we move to a new provider; back on Dev and Pro
Litmus: not checked
Which CSS fails where, and the fix
Per-client findings with the engine's fix (Free)
Litmus: not checked
Pull-request gate
GitHub Action (Pro)
Litmus: not checked
AI coding assistants
MCP server (Free)
Litmus: not checked
Test inbox
A private @try address (Free); sandbox SMTP and API (Dev)
Litmus: not checked
Campaign analytics
Not offered
Litmus: not checked
Drag-and-drop editor, proof rounds
Not offered
Litmus: not checked

Moving over from Litmus

  1. Create a free account and check an email you sent with Litmus, in all 21 clients.
  2. Add the GitHub Action, so a pull request fails when an email breaks (Pro).
  3. Point your AI assistant at the MCP server, or run the CLI in your terminal.

Questions

What do I lose moving from Litmus?
Campaign analytics, a drag-and-drop editor and proof rounds: Emailens has none of them. You keep the rendering check, in every simulated client.
Can I try Emailens without paying?
Yes. The checker needs no signup: five clients, 3 checks a day, results kept for an hour. A free account opens all 21 clients and keeps your checks for 7 days. It allows 30 checks a day. Real-device screenshots are paused while we move them to a new provider; they will be back on Dev and Pro.
Which plan does the GitHub Action need?
Pro. The Action's pre-send gate is a Pro feature: on Free and Dev it answers "The pre-send gate is available on the Pro plan."

Sources

  • Litmus: no feature claim about Litmus has a recorded source yet, so the Litmus column reads "not checked". Where we say Litmus is the better tool, that is our reading of what it is built for, not a checked feature list. We list competitor prices only with a source and the date we checked. Their pricing page ↗
  • Emailens plans and prices: pricing; real installs and the probe: real-device checks.
  • Something here wrong about Litmus? Write to contact@emailens.dev.

Real captures 14 Oct 2026 on 10 installs · caniemail (MIT) via @emailens/engine 0.16.4 · tested upstream 9 Mar 2021 · data last changed 17 Oct 2026

Check an email you sent with Litmus

The checker needs a computer screen.

A free account opens all 21 clients and keeps your checks for 7 days. Create a free account →

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