Just a few of the brands using our platform

Bang Olufsen logo
Hilton Hotel logo
IBM logo
KLM logo
New York Times logo
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Email previews

Send flawless emails. Consistently.

Every inbox displays emails differently. With previews on over 90+ clients and devices, we help you make sure your message displays as intended in every inbox so you can deliver error-free messages quickly and consistently, whether your subscribers use Android or iPhones, Yahoo Mail or Outlook.

Plus, our tools make collaboration easy. Simply share an email preview link to have teammates, clients, and stakeholders review your email, and make sure everyone is on the same page.

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Pre-deployment checklist

Content checks that matter

Our customizable click-to-fix tools simplify your email QA process, from UTM validation, to accessibility checks, and more, making content checks a breeze!

Optimize your email pre-deployment checklist and deliver error-free emails with the push of a button — no HTML experience required! Our three-step workflow fits into your existing production process seamlessly, helping you save time, drive more value, and connect with more subscribers. 

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Collaboration

Empower your team

Our platform gives you the tools you need to collaborate with your team more efficiently, be more creative and productive, get campaigns to market faster, and deliver email perfection — every single time. 

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Deliverability

Get delivered — and look good doing it

Subscribers can’t engage with your campaigns if they don’t receive them. Improve your email deliverability — and land in more inboxes — with blocklist domain and spam tests.

Check your email against 23 of the most popular spam filters and test your IP address against the most popular blocklist services to resolve any deliverability issues before you click “send.”

See if you're on any domain blocklists
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“Campaign Precheck really is a saving grace. It saves around one or two hours of work per email.”

– Email Marketing Manager, full service digital agency with national clients

Everything you need to crush it with email

Mailgun Optimize

Improve inbox placement and safeguard your sender reputation with industry-leading deliverability tools and services.
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Contact us - email

Better emails start here.

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