PreviewInbox is unclaimed —

PreviewInbox

Show Preview Text appearance under different email clients.·previewinbox.com

PreviewInbox is a web-based tool for previewing how emails will render across different email clients, showing both the inbox list preview panel and the final generated HTML code produced by web-based email clients. It also runs spam score checks against common industry blacklists and offers a white-label API for integrating email preview and testing into other systems. The service specifically supports major Chinese email service providers and is offered as a standalone tool that is also part of a broader email marketing suite called Mailifly.

What it's for

Testing emails before sending them to clients or potential customersPreviewing how preview/preheader text appears in the inbox list across email clientsAccessing the final generated HTML code from a web email client to diagnose display issuesTesting email HTML against common email practices and industry blacklistsIntegrating email preview and spam testing into an existing system via API

Features 10

Access to the final generated HTML code from web email clients
Customization requests available for enterprise members
Email inbox preview across multiple email clients
Inbox list preview panel
Preview text (preheader) appearance testing
Spam score testing against common industry blacklists
Support for major Chinese email service providers
Testing performed on real devices covering iOS, Android, Windows Desktop, and Web Clients
Tiered plans with different email preview volume limits
White-label API to get device lists, create test projects, and return results

At a glance

API

TypeWeb app

DeploymentCloud

PlatformsWeb

LanguagesEnglish, Chinese

ForMarketers, Email editors/designers, Developers

CompanyKooboo

Pricing

All three plans are billed monthly; no annual billing option is shown on the pricing page.

Basic$9/mo

No API Access

50 Email Previews included, no API access

Premium$28/mo

Marked as 'Popular Value'

150 Email Previews included

Enterprise$98/mo

Enterprise members can request paid customization of the software.

Unlimited Email Previews