You Can Unsend an Email 10 Seconds After It's Sent in iOS 16 Mail App

Apple in iOS 16, iPadOS 16, and macOS Ventura is overhauling the Mail app and introducing a slew of new features that bring it more in line with competing mail services such as Gmail. One of those new features is a long-awaited Undo Send option, designed to let you quickly recall an email if you make a mistake.

mail undo send
Undo Send works for up to 10 seconds after you send an email, so you don't have a lot of time to change your mind if you do want to unsend an email that you've sent out. Google's Gmail service also has an undo send feature for emails, but you can customize the cancelation period to 5, 10, 20, or 30 seconds.

For now, Apple is limiting undo send to 10 seconds, but it's possible the company could add other time options in the future.

There are several other new features coming to the Mail app. You can schedule your emails for the future, or have Mail give you a reminder about an email you opened but forgot to respond to. It will also let you move sent messages to the top of your inbox so you can get a reminder to send a follow-up, and it can notify you if you forget an important part of an email like an attachment or recipient.

mail send later reminders
Rich links are now supported in email messages so you can see more at a glance, and search is improved. Apple says that you'll see better search suggestions from the moment you begin a search, and it will also correct typos and use synonyms for your search terms to bring up what you're looking for.

These features are available across Apple's platforms for those running the latest software. Apple's updates are limited to developers at this time, but the company plans to release public betas in July.

Related Forum: iOS 16

Popular Stories

iPhone Top Left Hole Punch Face ID Feature Purple

iPhone 18 Pro Launching Later This Year With These 12 New Features

Thursday January 15, 2026 10:56 am PST by
While the iPhone 18 Pro and iPhone 18 Pro Max are not expected to launch for another eight months, there are already plenty of rumors about the devices. Below, we have recapped 12 features rumored for the iPhone 18 Pro models, as of January 2026: The same overall design is expected, with 6.3-inch and 6.9-inch display sizes, and a "plateau" housing three rear cameras Under-screen Face ID...
Apple MacBook Pro M4 hero

These 5 Apple Products Will Reportedly Be Upgraded With OLED Displays

Friday January 16, 2026 7:07 pm PST by
Apple plans to upgrade the iPad mini, MacBook Pro, iPad Air, iMac, and MacBook Air with OLED displays between 2026 and 2028, according to DigiTimes. Bloomberg's Mark Gurman previously reported that the iPad mini and MacBook Pro will receive an OLED display as early as this year, but he does not expect the MacBook Air to adopt the technology until 2028 at the earliest. A new iPad Air is...
iOS 27 Mock Quick

iOS 27 Will Add These 8 New Features to Your iPhone

Sunday January 18, 2026 3:51 pm PST by
iOS 27 is still many months away, but there are already plenty of rumors about new features that will be included in the software update. The first beta of iOS 27 will be released during WWDC 2026 in June, and the update should be released to all users with a compatible iPhone in September. Bloomberg's Mark Gurman said that iOS 27 will be similar to Mac OS X Snow Leopard, in the sense...
Apple Wallet ID Illinois

Apple Plans to Expand iPhone Driver's Licenses to These 7 U.S. States

Friday January 16, 2026 12:12 pm PST by
In select U.S. states, residents can add their driver's license or state ID to the Apple Wallet app on the iPhone and Apple Watch, and then use it to display proof of identity or age at select airports and businesses, and in select apps. The feature is currently available in 13 U.S. states and Puerto Rico, and it is expected to launch in at least seven more in the future. To set up the...
14 inch MacBook Pro Keyboard

MacBook Pro Buyers Now Facing Up to a Two-Month Wait Ahead of New Models

Sunday January 18, 2026 6:50 pm PST by
MacBook Pro availability is tightening on Apple's online store, with select configurations facing up to a two-month delivery timeframe in the United States. A few 14-inch and 16-inch MacBook Pro configurations with an M4 Pro chip are not facing any shipping delay, but estimated delivery dates for many configurations with an M4 Max chip range from February 6 to February 24 or even later. At...

Top Rated Comments

BradWI Avatar
47 months ago

Instead of undo send they should have delayed send so you can catch it before it ever leaves Apple Mail.
Isn't that what is happening here anyway? Didn't think there is a real way to actually unsend an email.
Score: 32 Votes (Like | Disagree)
4jasontv Avatar
47 months ago
Give the send button options.
Express: Sends it after 10 seconds.
Courier: Sends the message after 10 minutes.
FedEx: Let you schedule when it's sent.
UPS: Let's you schedule when it's sent but it sits in iCloud for a few days before it's delivered.
USPS: Waits until late afternoon to be sent out, but it sits in iCloud for a week before it's delivered.
Surepost: Let's you schedule when it's sent but it sits in iCloud for a week before it's delivered.
Score: 10 Votes (Like | Disagree)
macduke Avatar
47 months ago
I just want machine learning that can tell I referenced adding an attachment in my message text and then pop up when I go to send with a confirmation “It sounds like you meant to attach a file, do you want to send this message without a file or cancel and attach a file?” Because 9 times out of 10 that’s why I would want to undo send.
Score: 9 Votes (Like | Disagree)
TheYayAreaLiving ?️ Avatar
47 months ago
I use this feature all the time in Gmail. Reminds me of Gmail "Undo Send". Happy to see, Apple has finally decided to bring it to it's own operating system.
Score: 7 Votes (Like | Disagree)
_Spinn_ Avatar
47 months ago

Isn't that what is happening here anyway? Didn't think there is a real way to actually unsend an email.
Yeah, pretty sure this is what it is doing.
Score: 7 Votes (Like | Disagree)
zorinlynx Avatar
47 months ago
By the way folks, there's a reason this is only ten seconds.

There is no "undo send" with E-mail. Once your E-mail hits the SMTP server, it's sent. There's no taking it back. Doing so would require the cooperation of the recipient's mail server, which cannot be guaranteed and opens a can of worms to allow this ability.

A 10 second "undo send" is just delaying sending the message for ten seconds. Yes, that'll be enough to sometimes catch yourself and not send it, but you can easily just mull over sending it for ten seconds and it would accomplish the same thing.
Score: 6 Votes (Like | Disagree)