Email service provider guides

Preview delivered ESP campaigns across email clients and test where they land with MailSlurp device rendering and inbox placement tutorials.

Use these provider-specific tutorials to check a finished campaign after it leaves your email service provider. MailSlurp can render the delivered email across selected clients and devices, then separately measure whether the campaign reaches inbox, promotions, spam, or is not received at controlled provider addresses.

New to the category? Read what an email service provider is before choosing a workflow.

Device rendering tutorials

Send a test email from your ESP to a MailSlurp device preview address, then review the delivered message across selected Gmail, Outlook, Apple Mail, Yahoo, iPhone, iPad, Android, desktop, light mode, and dark mode targets.

Inbox placement tutorials

Create an inbox placement test, add its current marker and controlled seed recipients to your ESP campaign, then review the observed result for each supported inbox provider.

Choose the right campaign check

Use device previews to inspect responsive layout, images, buttons, typography, footers, and dark mode after the ESP sends the email.
Use inbox placement testing to measure where the same campaign lands across controlled provider inboxes.
Use Email Audit for content, link, image, and accessibility findings.

These checks answer different questions. Run device rendering and inbox placement against the final campaign revision before an important send.

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Email service provider guides

Device rendering tutorials

Inbox placement tutorials

Choose the right campaign check

The complete email and SMS toolkit.