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Send at the right time: Every time

Improve your email conversion and open rate by automatically sending emails at the exact moment a recipient views their inbox with Send Time Optimization.

Take the guesswork out of send times

Finding the perfect time to send an email can feel overwhelming, especially when you consider that the average person receives more than 120 email messages a day. No two businesses are the same, and neither are their email campaigns or subscribers.

For time-conscientious senders, Send Time Optimization (STO) holds your emails until your recipient is engaging with their inbox, putting messages top of mind for better email engagements. Your customers will hear you each and every time you want to reach them.

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Improve your email engagements

With Send Time Optimization (STO), your email messages are delivered at the exact time your recipients are viewing their inbox, leaving your messages top of mind. Campaigns sent with STO performed better than those without STO every time. Users consistently see a 5-10% uplift in opens and clicks over regular methods.*

*Customers who have seen these results have high deliverability. To improve your deliverability, sign up for a consultation with our Deliverability Services.

Stand out from the crowd

Want to reach and convert more customers? Send Time Optimization works across all major inbox providers, like Gmail, Outlook, and Yahoo. Other solutions only work with certain mailbox providers (MBPs), limiting their effectiveness.

By adapting to individual usage patterns and open times, your email is more likely to show up at the top of someone’s inbox and is more likely to be engaged with by the recipient. Power your email marketing campaigns or transactional emails with Mailgun's rich database of sending history.

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Personalization powered by machine learning

STO targets the best send time to reach individuals no matter the time of day or day of the week, using the engagement data we gather from the billions of emails we send each month. When you send a message using STO, our algorithm analyzes the data we have on hand for a given recipient to determine when the optimal send time is to deliver.

Any type of email address is eligible for Send Time Optimization; no domain limitations, no setbacks.

See what you can accomplish with the world's best email delivery platform

It's easy to get started. And it's free.
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