Email Guardian is there when you can’t be

Never send another broken email or land in the spam folder with the only 24/7 email monitoring solution.

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Reach the inbox with pixel-perfect emails, everytime

One in six emails never reach the inbox due to deliverability issues. Not to mention, email clients change all of the time, without notice, and every change puts your emails at risk of breaking. Life is unexpected, but your email experiences don’t have to be. Protect your emails—and your brand—with Litmus Email Guardian.

Make it to the inbox—not the spam folder

Don’t wait until you’re facing costly, time-consuming, frustrating deliverability challenges. Automatically monitor every sending domain to ensure you’re meeting Gmail and Yahoo’s sender requirements and following authentication best practices. Get notified when an issue is detected so you can resolve it before your next send.

Gain total peace of mind in seconds

You’ve painstakingly crafted the perfect email. Time, energy, and care has gone into every line of code. Activate Email Guardian on all of your important emails and we’ll keep a close watch to ensure they remain pixel perfect with fully functional links so they’re ready to drive revenue and results.

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“Litmus Email Guardian helped us find and fix a broken link before it reached our subscribers which was brilliant. It helped us get ahead of an issue that would have otherwise resulted in a poor customer experience and potentially a loss of trust in our brand.”

Lucy Schofield
CRM Marketing Manager at Zen Internet

Keep a pulse on automated emails and frequently used templates

Start monitoring all of your automated sends and frequently used email templates to ensure your core email resources will result in exceptional subscriber experiences, every time.

Be the first to know when your brand experience is at risk

We’ll ensure you’re the first to know when an unexpected email client change or broken/slow-to-load links or images impact the way your subscribers experience your email—and your brand. When an issue is found, you’ll get a notification so you can get to the bottom of the problem, retest your email, and continue monitoring for future changes, all within Litmus.

Join the 700,000+ marketers who use Litmus to build and test quality emails, maintaining a great brand and subscriber experience, every time.

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Email Guardian FAQs

Have a different question about how Litmus works or the Litmus pricing plans available? Get in touch with one of our specialists.

How does Litmus Email Guardian work?

Litmus Email Guardian uses proprietary Litmus email technology to automatically monitor your email across supported email clients and devices like Microsoft Outlook 365, Gmail, and more. Each time Litmus Email Guardian scans your email it looks for any rendering differences based on the most recent Previews & QA test you’ve run. If a significant difference is detected, you have the option to be notified instantly so you can take action to correct any issue that persists.

Litmus Email Guardian gives you peace of mind your most important emails are constantly protected and ready to drive revenue. It takes the ambiguity out of email client updates and how they’ll impact your email and puts you in the driver seat—all without added manual effort on your part. Plus, Email Guardian will keep a close watch over your links and calls-to-action notifying you of any broken or slow-to-load link experiences. With Litmus Email Guardian, you will be the first to know if your subscriber and brand experience is at risk.

No! Litmus Email Guardian does not impact your monthly Email Previews usage or limits.

You can elect to receive email notifications when changes are detected.

No, Litmus Email Guardian utilizes Litmus’ proprietary internal emerging email technology to monitor emails for costly errors.

All Litmus plans have access to Litmus Email Guardian! Visit our pricing guide for full details.

Email marketing made better