How to unsend an email

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Last updated: April 4, 2026

Quick Answer: Unsending an email is typically possible only if the recipient hasn't opened it yet and the email service offers a specific 'undo send' or 'recall' feature. For Gmail, you can recall an email within a short window after sending, usually up to 30 seconds. Other services may offer similar, though often more limited, options.

Key Facts

Overview

Accidentally sending an email with a typo, to the wrong person, or without necessary attachments is a common and often embarrassing mistake. Fortunately, many popular email services provide features to help you 'unsend' or 'recall' your message, at least for a limited time after it has been sent. The effectiveness and availability of these features vary significantly depending on the email client or service you are using.

How to Unsend an Email in Popular Services

Gmail

Gmail offers a very user-friendly 'Undo Send' feature. Immediately after you click the 'Send' button, a small notification appears at the bottom left of your screen with the option to 'Undo'. Clicking this will cancel the send action, and the email will return to your drafts folder. By default, this window is set to 5 seconds, but you can extend this to 10, 20, or 30 seconds in Gmail's settings. To adjust this:

  1. Go to Gmail Settings (the gear icon in the top right).
  2. Click 'See all settings'.
  3. Under the 'General' tab, find the 'Undo Send' section.
  4. Choose your desired cancellation period from the dropdown menu.
  5. Scroll to the bottom and click 'Save Changes'.

This feature is a lifesaver for quick corrections, but remember, it only works within the set time frame and before the recipient has interacted with the email.

Microsoft Outlook

Outlook provides two primary methods for attempting to retrieve sent emails:

1. Undo Send (Outlook Desktop App)

Similar to Gmail, Outlook's desktop application offers an 'Undo Send' option. When you send an email, a notification bar may appear at the top of the message window with an 'Undo' button. Clicking this will stop the email from being sent. The duration of this window is generally very short, often just a few seconds, and is not as configurable as in Gmail.

2. Recall This Message (Outlook Desktop App & Web)

This feature is more robust but also less reliable. The 'Recall This Message' function attempts to retrieve emails that have already been sent. It works by trying to delete the message from the recipient's inbox. However, its success depends on several factors:

To recall an email in Outlook (Desktop):

  1. Open the email you wish to recall from your 'Sent Items' folder.
  2. Click on 'Actions' in the 'Move' group on the ribbon.
  3. Select 'Recall This Message...'.
  4. Choose either 'Delete unread copies of this message' (to simply try and remove it) or 'Delete unread copies and replace message with a new message' (to delete the old one and send a corrected version).
  5. Check the box 'Tell me if recall succeeds or fails for each recipient' if you want a notification.
  6. Click 'OK'.

To recall an email in Outlook on the Web (Outlook.com/Office 365):

  1. Go to your 'Sent Items' folder and open the message you want to recall.
  2. Select the '...' (More actions) menu at the top of the message window.
  3. Choose 'Message options'.
  4. Under 'Undo Send', click 'Undo Send'.
  5. Confirm by clicking 'Undo Send' again.

It's crucial to understand that Outlook's recall function is not foolproof and is often ineffective for emails sent outside your organization or to recipients using different email providers.

Apple Mail

Apple Mail does not have a built-in 'Undo Send' or 'Recall' feature comparable to Gmail or Outlook. However, if you are using an IMAP or Exchange account (like iCloud Mail, Gmail, or Outlook.com through the Mail app), you can configure a delay before emails are actually sent. This mimics the 'Undo Send' functionality:

  1. Open the Mail app on your Mac.
  2. Go to Mail > Preferences (or Settings).
  3. Select the 'Composing' tab.
  4. Look for the 'Send delay' option and set a time (e.g., 10, 20, or 30 seconds).
  5. When you send an email, a countdown will appear in the top menu bar, allowing you to cancel the send before it goes out.

For POP accounts or if you don't configure a send delay, once an email is sent, it cannot be recalled through the Apple Mail application itself.

Other Email Services (e.g., Yahoo Mail, AOL Mail)

Many other email providers, such as Yahoo Mail and AOL Mail, do not offer a native 'Undo Send' or 'Recall' feature. If you need this functionality, you might need to rely on third-party browser extensions or add-ons, but these should be used with caution due to potential security and privacy risks. Always ensure any third-party tool is reputable before installing it.

Limitations and Considerations

It's important to manage expectations regarding email recall. The primary limitation is time. Most 'Undo Send' features only provide a few seconds to act. Recall features, like Outlook's, are often unreliable and depend heavily on the recipient's email system and their actions. If an email has been delivered and opened, it's generally impossible to retrieve it. Therefore, the best approach is to always double-check your emails before hitting send.

Sources

  1. Undo Send email - Gmail Helpfair-use
  2. Recall or replace an email message that you sent - Microsoft Supportfair-use
  3. Write and send emails in Mail on Mac - Apple Supportfair-use

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