So, you just tapped “Send” on an important e-mail message with your favorite email app—and the moment you did, you realized you sent the message to the wrong person, or forgot to attach a critical file, or CC’d the entire planet, or you simply want a do-over.

Unfortunately, there are no mulligans with the standard email app for iOS. Once you tap “Send,” your email is on its way, for better or worse.

The good news is that there are several alternative iOS email apps with an “undo send” feature. The way it works is simple: once you tap the “Send” button, you’ll get anywhere between five and 10 seconds to change your mind, perfect for saving yourself from e-mail embarrassment.

Read on for four top iOS mail apps that’ll let you undo a sent message, starting with:

Gmail (free) | Download

Google’s top-notch email app just got a big update for iOS, adding features like instant search results and swipe-to-archive and swipe-to-delete gestures. You can also do nifty things like “mute” annoying e-mail threads, create custom notifications for specific message labels, and set up an out-of-office message directly from your iPhone or iPad.

email apps - Gmail for iOS undo send

Best of all, though, the new Gmail app for iOS adds an “undo send” feature. As soon as you tap the “Send” button, an “Undo” prompt will appear at the bottom of the screen, giving you a few seconds to yank the message from Gmail’s outbox.

Pretty nice, but there are downsides to Gmail, including the fact that the iOS version only works with Gmail accounts—meaning, for example, you can’t use it to check your iCloud account. The lack of a universal inbox is also a bummer.

Grab Gmail for iOS from the App Store

Airmail ($4.99) | Download

No, it’s not free, but Airmail’s appealing email app boasts a series of features missing in Gmail for iOS, including a universal inbox, a ton of customization options, and the ability to juggle several different types of mail accounts (including iCloud). Also nice: a “snooze” feature for messages you’d rather deal with later.

email apps - The Airmail app for iOS lets you choose how long you have to "undo" a send.

And yes, there’s an “undo send” feature, just like the Gmail app for iOS, except with Airmail, you can decide how many seconds you get to tap “undo.”

Just tap the main menu button in the top-left corner of the screen, tap Settings, scroll down to the Composer heading, tap Undo Send, then make your pick—either five seconds, 10 seconds, or “off” altogether.

Grab Airmail from the App Store

Spark (free) | Download

A relative newcomer when it comes to third-party iOS email apps, Spark comes to the table with a “smart” inbox that (if you let it) will sort through incoming messages and highlight only the important ones.

email apps - Spark for iOS undo delete message

Like Airmail, Spark has a universal inbox and the ability to “snooze” a message, and it even has “quick reply” buttons that let you reply with a “thanks” or a “like” with a single tap.

Spark also lets you “undo” a sent message, giving you about five seconds to tap “undo” once you’ve hit “Send.”

Grab Spark from the App Store

Inbox by Gmail (free) | Download

Google’s nifty Gmail alternative comes with its own “smart” inbox similar to Spark’s, complete with filters that automatically sort low-priority messages into “bundles” like Promos, Purchases, Social, and Forums. As with Airmail and Spark email apps, you can snooze messages, as well as “pin” important ones and create reminders out of others.

email apps - Inbox by Gmail for iOS undo send

Inbox’s “undo send” feature works exactly like Gmail’s: after you tap Send, you get about five seconds to tap Undo. Sadly, Inbox shares two of Gmail’s biggest downsides—namely, there’s no universal inbox, nor is there support for anything but Google accounts.

Grab Inbox by Gmail from the App Store

Bonus tip: Undo a deleted message

In addition to their respective “undo send” features, each of the iOS email apps listed here will let you “undo” a trashed message, handy for retrieving an e-mail you deleted by accident.

Click here for more iOS tips!

Subscribe for free tips!

Subscribe for free tips!

Get free tips, how-tos and deals from here’s the thing delivered straight to your inbox each week.

Thanks! To confirm your subscription, please click the link we just sent to your mail inbox.