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How to optimize email send times for recipients with Mixmax

This article explains how the Mixmax AI Smart Send works and how it determines the best time to send messages based on recipients' activity.

Updated today

AI Smart Send works when you send individual messages or schedule a sequence to dozens or even hundreds of recipients. Below are details on how this feature works.


AI Smart Send is available for Inbox Copilot, Mixmax Bundle, and Copilots for Teams.

How do I schedule an individual message at a recommended time?

For Gmail

Once your message is composed and ready to be scheduled, click the Send Later button. You'll see the bar graph directly below the calendar picker, and hovering over each bar shows the time in your time zone. If you click one of the bars (we'd suggest the tallest), we'll populate the AI Smart Send time in the text field for you to confirm. Once you hit Schedule Email, your message will be scheduled for sending. The graph will always show you the best time within the next 24 hours.

AI Smart Send

For Outlook

Once your message is composed and ready to be scheduled, click the Smart Send button within the Mixmax add-in. Smart Send with AI is the default mode and works precisely the same as the Gmail version, as explained above.

What's different is that after clicking Schedule Email, you'll be prompted with a confirmation dialog that lets you cancel.


How do I schedule a sequence with AI Smart Send?

When you click Activate Recipients, you'll see the option to activate With AI Smart Send in the Add Recipients modal window.

Activating recipients with AI Smart Send

When you choose AI Smart Send for a sequence, Mixmax will automatically send at the next AI-determined time for each recipient and stage. If there isn't enough data to determine it for a specific recipient, the sequence will default to sending the message as soon as you activate the sequence.

Please remember that if you use AI Smart Send on your sequence, it will apply to all future batches of recipients.


How do we determine the AI Smart Send time?

Mixmax uses data based on your recipients' activity. Activity refers to opens, clicks, downloads, replies, and meeting confirmations—the same information we track in your Live Feed. The AI Smart Send time is calculated based on when that recipient is most active.

If your message is scheduled for multiple recipients, we'll show the best time based on the activity of all recipients listed. The graph changes when you add or remove recipients on the draft.


What would it show if I had never contacted this recipient before?

Even if you have not contacted the recipient before, we may still be able to show you an AI-determined time slot if they have activity from other Mixmax messages. If there is insufficient data for the particular recipient, we will fall back to checking for activity records across the domain.

We require some data, so there may be times when there isn't enough to provide a reliable estimate. In those rare cases, this is what you can expect to see:

AI Smart Send with no time recommended
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