View your Klaviyo flows on real email clients
Compare Gmail, Outlook, Yahoo, Apple Mail, iPhone, Android, and dark mode at a glance.
Catch broken Klaviyo flows before launch
MailSlurp previews the delivered flow across real clients and checks inbox or spam before shoppers see it.
Klaviyo email previewDevice renderingInbox placement test
Trusted by top companies worldwide
Test Klaviyo flows on every device
See the delivered product blocks, buttons, and dark mode before shoppers do.
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 Klaviyo campaign across iPhone, Android, Windows, Mac, Gmail, Outlook, Yahoo Mail, and Apple Mail—including light and dark mode.
See Klaviyo device renders in action
Follow a real preview send from Klaviyo into finished Gmail, Outlook, iPhone, Android, and desktop renders.
Follow the Klaviyo device preview guideHow Klaviyo email testing works
One preview send turns into proof across every important client.
01
Choose the clients
Pick the devices, inboxes, and dark-mode views your shoppers use.
02
Send one Klaviyo preview
Use a real profile and send the finished flow or campaign to MailSlurp.
03
Fix what breaks
Compare every delivered render, fix the friction, and test again.
Campaign approval
Share Klaviyo 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...
Klaviyo mobile render
iOS Mail · delivered email
Message #campaign-qa
Check whether your Klaviyo campaign reaches the inbox
Send a controlled Klaviyo test to Gmail, Google Workspace, Outlook, Microsoft 365, and Yahoo seed inboxes so you can see where the campaign lands before customers receive it.
01
Create a fresh Klaviyo seed run
Start a MailSlurp inbox placement test and use its exact marker and current Gmail, Google Workspace, Outlook, Microsoft 365, and Yahoo recipients.
02
Send the marked Klaviyo campaign
Import the addresses into a consented Klaviyo test list, keep the exact marker in the campaign, and send only to that list.
03
Review inbox and spam placement
Check inbox, tab, spam, and missing results, then review campaign content and sending-domain findings before sending to customers.
See more than Klaviyo's delivered status
Combine observed mailbox placement with the delivered Klaviyo email, client rendering, sender authentication, and content checks so the next fix is based on evidence.
Check Klaviyo 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.
Klaviyo email preview questions
What to check before a Klaviyo campaign or flow reaches customers.
How do I send a test email in Klaviyo?
Open the email editor, click Preview, find Send a preview using a profile, enter the recipient, and click Send test. Use a MailSlurp render address as the recipient when you want the delivered message captured across multiple clients and devices. Follow the illustrated Klaviyo guide.
Can I preview a Klaviyo email in Gmail and Outlook?
Yes. Send the Klaviyo test email to a MailSlurp render address and choose the Gmail, Outlook, Apple Mail, iPhone, iPad, Android, desktop, light-mode, and dark-mode targets that matter to your audience.
Is Klaviyo Inbox testing the same as sending a preview email?
No. Klaviyo exposes Inbox testing as a separate paid-account workflow. A preview email uses Klaviyo's test-recipient field. MailSlurp can receive that delivered preview email and keep the selected cross-client screenshots in one render result.
Can I run a Klaviyo inbox placement test with MailSlurp?
Yes. Start a separate MailSlurp inbox placement test, import its current Gmail and Outlook test addresses into a consented Klaviyo list, keep the exact marker in the campaign, and see where each message landed. Follow the Klaviyo inbox placement guide.
Does MailSlurp preview the email Klaviyo actually sent?
Yes. The preview run starts from the received Klaviyo test message, so the result includes the HTML, hosted images, links, footer, and campaign content present in that delivered email.
When should I rerun a Klaviyo email preview?
Rerun it after changing copy, images, product blocks, personalization, layout, links, tracking, footer content, or campaign settings. Final approval should always refer to the latest delivered version.
Klaviyo
Protect the clicks in your next Klaviyo flow
Catch broken product blocks and bad placement before they cost the next click.
Free to start. No credit card required.