View your Kit Broadcasts on real email clients
Compare Gmail, Outlook, Yahoo, Apple Mail, iPhone, Android, and dark mode at a glance.
Make every Kit Broadcast a clean read
MailSlurp shows each Broadcast on readers' real devices and flags a bad trip to spam.
Kit email previewDevice renderingInbox placement test
Trusted by top companies worldwide
Protect the reading experience on every screen
Catch narrow columns, oversized images, weak dark-mode contrast, and buttons that are hard to tap in the email Kit actually sends.
Create a free accountFree to start. No credit card required.
Find broken links and images across providers
Spot dead buttons, missing assets, clipped layouts, and awkward mobile stacking before launch.
Create better campaigns that convert
Fix the friction before it costs a click—or a sale.
Every device your customers use
See your delivered Kit campaign across iPhone, Android, Windows, Mac, Gmail, Outlook, Yahoo Mail, and Apple Mail—including light and dark mode.
Client and device previews
Preview the delivered Kit email before customers see it
Review the campaign across supported email clients and configured render targets, compare results, and inspect the source HTML before the Kit send reaches customers.
How it works
Choose the clients, send one Kit test, and fix anything that looks wrong.
01
Choose the clients
Pick the email apps, devices, and dark-mode views your customers use.
02
Send one Kit test
Send the finished campaign to your MailSlurp render address.
03
Fix what breaks
Compare every preview, make the fix, and send with confidence.
Campaign approval
Share Kit renders with your team for approval
Send render updates to Slack or Microsoft Teams, then open the same shareable result to review Gmail, Outlook, Yahoo, mobile, and dark mode before launch.
Create a free accountFree to start. No credit card required.
Set up team notificationsSlackMicrosoft Teams
# campaign-qa
Email launch reviews · 12 members
Maya
What do you think about these mobile previews?
app.mailslurp.com/device-previews/8edc1b89...
Kit mobile render
iOS Mail · delivered email
Message #campaign-qa
Check where your Kit Broadcast lands
Send a separate test to MailSlurp's Gmail, Outlook, and Yahoo seed inboxes so you can spot spam, tab, or missing placement before sending to your audience.
01
Create a fresh seed run
Start a new MailSlurp inbox placement test. Copy its marker and current Gmail, Google Workspace, Outlook, Microsoft 365, and Yahoo test addresses.
02
Send the marked Kit campaign
Import the current recipients under a dedicated Kit tag, add the exact marker to the Broadcast, and send only to that tagged audience.
03
See where the campaign landed
Check inbox, tab, spam, and missing results, then review content and sending-domain findings before the full send.
See more than Kit's delivered status
Combine observed mailbox placement with the delivered Kit email, client rendering, sender authentication, and content checks so the next fix is based on evidence.
Check Kit inbox placement
Confirm whether the campaign reaches inbox, promotions, spam, junk, or goes missing across personal and business mailboxes.
Render on real devices
Preview the same delivered email across Gmail, Outlook, Yahoo, Apple Mail, mobile, desktop, light mode, and dark mode.
Verify sender authentication
Track SPF, DKIM, DMARC, MX records, reputation signals, blocklists, and domain changes alongside each send.
Audit links and content
Catch broken links, missing images, unsupported markup, and content warnings in the exact campaign sent for preview.
Kit email QA questions
Practical answers for checking a Kit email before the full send.
How do I preview a Kit email on iPhone, Gmail, and Outlook?
Create a MailSlurp device preview, choose the clients and dark-mode views your audience uses, and send the finished Kit test email to the render address. MailSlurp then shows the delivered message in every selected client. Follow the Kit device preview guide.
Does the Kit test use the email customers would receive?
Yes. The preview starts from the delivered test message, including its HTML, hosted images, links, footer, and campaign content.
Can I test Kit inbox placement as well?
Yes. Start a separate inbox placement test, use its current test addresses and exact marker, send the campaign, and check inbox, tab, spam, content, and sending-domain results in MailSlurp. Open the Kit inbox placement guide.
Is inbox placement the same as device rendering?
No. Device previews show how the delivered email looks. Inbox placement shows which folder receives it. Run both before an important send.
When should I rerun these Kit checks?
Run the checks again after changing copy, images, personalization, layout, links, tracking, sender details, footer content, audience, or campaign settings.
Kit
Give your next Kit Broadcast a final check
Review the delivered design and inbox placement before subscribers open it.
Free to start. No credit card required.