Email deliverability suite
Mailgun Optimize gives you the tools to safeguard your email program, improve ROI, and land in more inboxes.
Optimize at every step
Get the actionable insights needed to build and maintain a high-ROI email program – from day-to-day decision making to long-term strategic planning. Mailgun Optimize combines industry-leading applications with a team of technical deliverability experts that is ready to provide personalized guidance and dedicated support.​
Our email deliverability tool, Mailgun Optimize, helps you build a winning email strategy and achieve your business goals. Get the data, insight, and expertise needed to:
Maximize inbox placement
Stay out of the spam folder
Improve sender reputation
Avoid disruption
Build a winning email strategy
Get expert guidance
Deliverability services
Don’t let the complexities of email deliverability become a distraction from your core business. Our Deliverability Services team has over 320 years of combined experience sending over 400B emails every year for some of the world's largest brands.
Prioritizing time to understand your business needs, we will help craft and implement a personalized strategy designed to advance and safeguard your email portfolio.
Email Validation
Don’t waste time and money sending to invalid or high-risk email addresses. Customers who validate their email addresses with us have lowered bounce rates by 21% and increased open rates by 65%, dramatically improving their delivery rate and engagement. Our email verification uses real, cached send data making it faster and more accurate than the competition.
Inbox Placement Testing
Catch inbox placement issues before they impact your bottom line. Use inbox placement testing to see where your emails will land across all major mailbox providers, down to the specific tab or folder. Inbox placement testing is the easiest, most accurate way to proactively identify and fix the issues that are keeping your emails in the spam folder.
Reputation monitoring
Monitor your most essential email signals with ease. Quickly identify and remediate issues before they cause major disruption to your email program. Monitor your IPs and domains against all major blocklists and spam traps, integrate seamlessly with Google Postmaster Tools and Microsoft SNDS, get actionable insight into critical bounces, and more with our full suite of monitoring applications.
Email previews
Your emails need to look captivating on the hundreds of different devices and email clients that your subscribers use. Take the guesswork out of making your emails responsive and flawless with live email preview testing on 100+ of the latest devices and clients.
A good average email deliverability rate typically falls between 90% and 98%. At this level, it’s a strong indicator that your email list is healthy, your content is inbox-friendly, and your relationships with mailbox providers are strong. However, high deliverability alone isn’t enough — you should also aim for strong inbox placement, not just successful delivery to the server.
To calculate email deliverability, divide the number of successfully delivered emails by the total number of emails sent, then multiply by 100 to convert it into a percentage. For example, if 950 emails are delivered out of 1,000 sent, your deliverability rate is 95%.
Emails may land in spam due to a poor sender reputation, lack of proper authentication, spam-triggering content, or sending to outdated or invalid email addresses. Monitoring your reputation and validating your list regularly can help reduce spam placement.
To improve email deliverability, ensure proper authentication (SPF, DKIM, DMARC), maintain a clean email list, monitor sender reputation, and consistently send relevant, engaging content. Using an email deliverability tool like Mailgun Optimize helps you test inbox placement, validate addresses, monitor blocklists, and receive expert guidance.
