Make your next email work on the small screen.
Preview the delivered email on supported iPhone, Android and desktop clients. Catch broken layouts, hidden text and awkward buttons before your customers do.
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Keep the message readable in light and dark mode.
A template can look right on desktop and break on a phone. Check column order, image scaling, text size and button spacing across the available Gmail, Outlook, Apple Mail and Yahoo configurations.
Switch between light and dark results to catch disappearing logos and low-contrast text. Review the primary action at its actual mobile size, then send a corrected version to confirm the fix.
Follow the mobile preview checks
Check the email your platform actually sends.
Send from Mailchimp, Klaviyo, Brevo, HubSpot or your own application to a MailSlurp inbox. Preview the received email after your sender has applied its template, personalization and tracking.
How it works: receive the test, choose the supported mobile clients, inspect the renders and retest the corrected template. Keep the final result with the campaign review so the team approves the same version.
Explore device rendering and integrations
Mobile email preview questions
How do I preview an email on iPhone and Android?
Send the email from your sending platform to a MailSlurp inbox, open device previews and select the available client and device configurations. Review the delivered message, correct the source template and send another test to check the fix. Follow the mobile email rendering walkthrough.
Is a narrow browser window enough to test mobile email?
Resizing a browser helps check responsive HTML, but email applications apply their own CSS, image and dark-mode behavior. MailSlurp device previews let you inspect the delivered message in supported email clients as well as checking the template's layout.
What should I check in a mobile email preview?
Check that columns stack in reading order, text remains readable, images fit the screen and buttons are easy to tap. Review logos and text contrast in dark mode, then inspect the subject and preheader for missing or repeated copy. Check subject and preheader text.
Does a device preview tell me whether the email reached spam?
Device rendering shows how the email appears. A separate inbox placement test sends the message to provider seed accounts and reports the observed folders. Use both for a campaign whose layout and delivery destination matter. Run an inbox placement test.
Send an email that holds together on mobile.
Choose a device preview plan and check your next campaign or transactional email before release.