Add More Users to Your Account, New Mobile Clients Available for Testing + Additional Product Updates

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Behind the scenes, we’re constantly working to improve the Litmus experience through feature requests and product updates. Recently, we’ve racked up quite the list of enhancements to share with you!


You asked and we listened. While Premium plans still include access for up to ten users, monthly Plus and Basic plans now offer free access for the account holder and a colleague.

Adding additional users to your account is easy—and can be assigned one of three roles: admin, full, and and read-only.

  • Admin user: This type of user can add users and manage billing. In addition, they can create new email tests and tracking codes, as well as export Email Analytics data.
  • Full user: This type of user can create new email tests and tracking codes, as well as export Email Analytics data.
  • Read-only user: This type of user can view view existing tests and tracking code reports, but cannot create new tests, codes, or export data. Read-only users are free.

Account holders and admins can add additional users to their account through the “Account” tab.


Welcome to the Community

We’ve talked a lot about sharing knowledge and growing the email design community. Now, we’re excited to officially announce the launch of the Litmus Community.

The Litmus Community allows email designers to discuss all things email, troubleshoot code problems, and learn from a growing library of information on email design and marketing. It’s the best place to grow and share your knowledge. Now, all Litmus users have access to:

  • Discussions: Talk to the leading email professionals about design, strategy, stats, and industry news.
  • Code Questions: Stuck on a thorny rendering issue? Get insights from the best email designers around.
  • Learning Center: Access a growing collection of articles and tutorials on email design and strategy.

Community membership is included with all Litmus accounts. Log in and check it out today!

Don’t have a Litmus account?

Get immediate access to the Litmus Community with a free 7-day Litmus trial and start learning from the best email designers and marketers in the world. You’ll also have unrestricted access to the best preview, troubleshooting, and analytics tools available.


With 49% of emails opened on mobile, many designers are left worrying about how their emails render on small screens. Is the text large enough? Are buttons touch-friendly?

We already offer email testing for a wide variety of mobile devices, and we’re excited to announce some new additions!

Retina iPad and iPad mini

With various iterations of the iPad accounting for 12% of email opens, we’ve made some adjustments to their presence in Email Previews. Although you’ll no longer see previews for non-Retina iPads, these devices render your HTML and CSS identically to their non-Retina cousins. HTML and CSS support on mobile devices is closely linked to the operating system, app and rendering engine used to display the email, rather than the type of screen.


iPad (Retina)

Retina screens primarily affect image rendering. “Retina” is an Apple marketing term for high-resolution screens with twice the pixel density of traditional displays. Earlier versions of the iPad had a screen resolution of 1,024 x 768 pixels, whereas Retina iPads displays have 2,048 x 1,536 pixels for the same physical screen size.

By packing in extra pixels, Retina screens can render images with a sharper appearance and finer details. If you want to capitalize on this increased pixel density, you’ll have to create images at twice the intended display size, and use HTML and/or CSS to reduce the display size of the image by half. You can find more details on serving high-resolution images in Campaign Monitor’s Responsive Email Guide.


iPad Mini

Retina screens can also be targeted using specialized media queries. If you fall into the camp of advanced developers utilizing these techniques, you’ll want to be aware that some breakpoints may result in rendering results that differ between regular and high-resolution displays.

Windows Phone 8

Windows Phone purchases have been on the rise—increasing 123% in Q3 last year. While Windows Phone still accounts for less than 1% of opens, it’s growing in popularity through many parts of the world. We’ve recently upgraded our testing machines to run Windows Phone 8, and there are certainly some quirks to keep in mind as you test.

Be aware that Windows Phone 8:

  • Automatically blocks images
  • Has no support ALT text— instead, every image container displays a message prompting users to “Download pictures”
  • Does not auto-scale messages
  • Doesn’t support @media queries for responsive designs

Windows Phone 8

As a result, be sure to use a proper balance of live text and images for images-off optimization, as well as mobile-friendly elements, such as tappable buttons and large text.


We’ve always made it easy to share the results of your email and spam tests with public URLs. In addition to the ability to selectively share specific email client results, now you can also selectively share code analysis, subject line, and link checking results. Don’t want your client (or boss!) to get needlessly worried over subpar Lotus Notes results, or freak about code analysis results? Just uncheck the corresponding boxes.



One of the benefits of using Email Analytics is being able to view subscriber engagement, which shows how long subscribers actually had an email open. Did they just glance at an email and delete it? Or did they take the time to devour your message? This information is vital in determining the success of your campaigns.

However, recent updates to webmail interfaces have resulted in emails continuing to load even after subscribers have closed them and moved onto another message. As a result, we are unable to detect when the user stops viewing the email to accurately report engagement data.

You may have already noticed the exclusion of AOL Mail, Gmail,, and Yahoo! Mail from your engagement reports. You’ll also notice that your individual-level tracking reports will report the total read time in these clients as -1.

Engagement tracking for mobile and desktop clients remains unchanged.



Last year, Google introduced a number of changes to Gmail, including image caching and automation display of images. Since Gmail now caches images for users of both webmail and mobile Gmail interfaces, images are only downloaded once from the original hosting server. Successive views use the cached versions on Google’s proxy servers.

As a result, Email Analytics users will see a few changes to their reports.

  • There is now a “Using Google Cache” metric in Email Clients reports, showing initial opens from Google’s caching service.
  • Forward and print tracking no longer is trackable in Gmail.
  • Email Analytics users will see the location of Gmail proxy servers in their geolocation data.

Jason takes a deep dive into image caching and it’s effect on email designers and reporting in a recent blog post. As Jason explains, it’s now crucial to use individual-level tracking in Email Analytics in order to properly record opens. Without a unique identifier to properly track opens, Gmail will see the image in your tracking code as the same image for all recipients, which means only the first open using that tracking code will be recorded.

Do these changes in Gmail affect open rates?

Due to image caching, Email Analytics will track the first open from each user in that browser/device, but subsequent opens in the exact same browser/device will not be tracked. So, while you’ll be able to see unique opens from each subscriber, total opens may be affected.

Since open tracking relies on an image being downloaded and displayed, it’s no surprise that we’ve seen a drastic increase in Gmail opens since the introduction of image caching. With images now on for every Gmail message, opens have increased 243% since November. We suspect that you’ll see a similar increase in your Email Analytics client usage data!


If you have any questions about these changes, or feedback for future improvements, don’t hesitate to reach out.

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