Preview an email campaign

Learn to use the preview tool and inbox tests.


To test how a campaign will look when your recipients open it, you can use the following methods:

  • Preview tool
  • Inbox test

What's the difference?

The preview tool is a free service which offers an approximate preview.

An inbox test is a charged service which allows you to see how your campaign will look in different email clients. Availability and charges for inbox tests depend on your account setup.

To learn more about Inbox tests, check out the article Use the inbox and spam filter test.

Preview tool

You can open the preview tool by clicking the Preview button or icon wherever you see it, for example in EasyEditor.


This tool opens a preview of your campaign in desktop, tablet or phone formats.

However, previews are based on a generic device and only approximate how your email will look. 

To learn more, check out the article Previewing your campaign.

Browser restrictions

The preview tool uses your own browser to generate the preview. Therefore, the preview may differ, depending on the browser and device you're using.

If you want the best preview for mobiles or tablets, we recommend using Safari or Chrome browsers because Safari is WebKit based, and Chrome uses a fork of WebKit. Therefore, the preview in these browsers will be closer to that of a true tablet or mobile device running on either iOS or Android mobile operating systems.

The size of the tablet preview is roughly equivalent an iPad. The size of the mobile preview is roughly equivalent to an iPhone 4.

Mobile and tablet previews aren't available in Internet Explorer 9 browsers or earlier versions.

Preview VS Inbox and spam filter testing

The Inbox and spam filter test tool doesn’t support views for advanced personalisation and dynamic content; it should be used to see how campaigns look on different types of devices. Use the Preview button to view your advanced personalisation and dynamic content.

To learn more about inbox testing, check out the article Using the inbox and spam filter test.

See also

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