How to unsend email with Undo Send in Mail on iPhone

You can unsend email with Undo Send in Mail on iPhone within 10 seconds, and set a longer delay for all emails.

Last updated: October 20, 2026 10:09 am

By Tom Griffin - Executive Editor

0 Min Read

On iPhone, with Undo Send, you can change your mind and unsend an email message in the Mail app. There’s a catch: you have 10 seconds. You can also set a delay for all emails to give yourself a little more time to unsend them.

The inbox, showing a list of messages. The Undo Send button (for pulling back a recently sent message) is in the center of the bottom of the screen.

Undo a sent email

You have 10 seconds to change your mind after you send an email message.

Tap Undo Send at the top of the inbox to pull back the message.

Delay sending emails

Setting a delay gives you a little more time to change your mind and unsend emails.

Open Settings, tap Apps, tap Mail and tap Undo Send Delay. Choose a length of time to delay outgoing email messages.

TAGGED:Mail

ByTom Griffin

Executive Editor

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Tom Griffin is the editor-in-chief at GeeksChalk where he oversees all of site’s evergreen content to ensure it’s up to date with the latest information. Hailing from London in the UK, he has over seven years of experience in the tech journalism space and holds a degree in English Literature. In his spare time, Tom can found checking out the latest video games, immersing himself in his favorite sporting pastime of football, and petting every dog he comes across in the outside world.