Undo send
Fifteen seconds to take it back.
Switch it on and each message you send waits fifteen seconds before it leaves. Undo cancels it and puts it back in the composer.
In short
What is undo send?
Once a message is delivered to another mailbox, email offers no dependable way to pull it back. Undo send works by holding the message for a few seconds after you press send, so there is still something to stop.
15sec
Held after you press send
900sec
The longest hold an API send can ask for
Off
By default, on every account
How it works
Held for fifteen seconds first
Press Undo in that time and the message is cancelled before it reaches anyone. Leave it alone and it goes out when the time is up.
The composer comes back intact
Recipients, subject, body and attachments all return, and a new message keeps its From address. A reply or a forward reopens in its own thread.
Off until you switch it on
Turn on Undo send in General, under Mail behaviour. Until then, a message leaves the moment you press send.
What you get
In the product today
Every composer send
New messages, replies and forwards all get the same window.
Held on our side
Closing the tab does not cancel the send.
No silent failures
An Undo that comes too late says so instead of failing quietly.
Good practice
Getting the most out of it
- 01
Check the To line
Fifteen seconds is enough to catch a wrong recipient, not to redraft a paragraph.
- 02
Schedule for longer
When you want hours to reconsider, schedule the send instead, since a scheduled message can be cancelled until it goes.
- 03
Fix it, then resend
Undo reopens the message, so fix the slip and send again for a fresh fifteen seconds.
Questions
Asked often
Keep going
Works well with
Start
Your domain,
your mail.
Point a domain at OpenEmail and read it in a mailbox built around it. The free plan covers one domain.
