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How do I schedule an email with Smart Send Later in Outlook?

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How do I schedule an email with Smart Send Later in Outlook?

With Mailbutler’s Smart Send Later feature you can not only write an email now and schedule it to be delivered at a later date and time, Mailbutler can also optimize the delivery time for you, cancel the delivery if your recipient replies and deliver your emails even if your computer is off and offline.

Last updated on 19 Mar, 2026

For general information on Smart Send Later, check out our feature page.

If you are using a different email client, please refer to the corresponding guide for Apple Mail, or Gmail, where you’ll find step-by-step instructions tailored to those platforms.

How do I schedule an email with Smart Send Later?

1. Open Outlook and compose a new email.

2. Open the Mailbutler Sidebar.

2. In the Mailbutler Sidebar, click Set delivery date.

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3. Choose a date and time for when you want your email to be delivered. You can either select a date and time from your preset time intervals or set a date and time manually.

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4. Or tick Optimize delivery for, if you want Mailbutler to schedule your email for the optimal time to reach your recipient.
The information about the best time to reach the recipient is drawn from tracking information.

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5. Tick Cancel delivery if [recipient] messages me, if you want Mailbutler to cancel the delivery of your email if your recipient messages you before your scheduled email is due to be send out.

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6. Click Schedule.

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7. Your email is now scheduled and will be send out at the scheduled time. Your computer can be off and offline at the time your email is being delivered.

How do I unschedule an email with Smart Send Later?



1. You can find all of your scheduled emails in your Drafts. And you can reschedule and unschedule and edit your emails from there.

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2. To unschedule/reschedule an email, click the x button in the Mailbutler sidebar.

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Please note: The Smart Send Later feature should not be used to create email blasts or campaigns. Scheduling large batches of emails (more than 100) can result in a failure to send. This limit is due to most users’ servers, not because of Mailbutler.

 

To learn how to set an automation that reschedules your emails automatically to your working hours, please head to this article.

For general information on Smart Send Later, check out our feature page.

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