One of Apple’s most important iOS 16 features lets you unsend iMessages, but those aren’t the only things you can resume. Your iPhone’s Mail app also has Undo Send, and unlike the Messages app, you can even customize how long you have to stop an email before it’s too late.
Sometimes your brain catches up with your actions, so you might realize something about an email immediately after hitting send. You might choose the wrong recipient or email account, have embarrassing spelling or grammatical errors, or need to add information or attachments you forgot. Whatever the reason, you have a short opportunity to turn the “sent” email into a draft.
You need to be running iOS 16 or later on your iPhone, so update your device software if you haven’t already. The Undo Send feature in Mail also appears on iPadOS 16.1 for iPad and macOS 13 Ventura for Mac, which are still in beta.
How to unsend an email
Whenever you hit the send button in a draft for any email account in the Mail app, you have ten seconds to block it from sending. When the email disappears from the screen, tap the new “Undo Send” button at the bottom of the current view.
Since Mail is responsible for email delay, it works with any email account on your iPhone, whether it’s iCloud, Gmail, Yahoo, Outlook, or another service.
How to change the send cancellation deadline
Again, you only have ten seconds before the button disappears, but you can increase the wait time if you want an extended opportunity to slam the brakes on an outgoing email.
To do this, go to Settings -> Mail -> Override send delay. Then choose between 10, 20 or 30 seconds. After the chosen time has elapsed, Mail automatically sends your email. You can also disable the feature if you want to send emails instantly.
While the Messages app actually sends your iMessage to recipients and lets you pick it up within two minutes, Mail only has a time limit to send emails. This way, the people you send an email to will never have a chance to see your email until you can stop them from sending.
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