How to Make Gmail Ask "Are You Sure?" Before Sending an Email
Gmail has no confirm-before-send setting. Undo Send gives you up to 30 seconds after the fact, and Schedule Send can buy more time. For a real pause at Send, like Outlook's SafeSend, you need an extension. Here are all three, and when each one is enough.
The short answer
Gmail does not have a "confirm before sending" option. Click Send and the email is on its way. What Gmail does have is a short window to take it back, and a way to send later. If you want an actual "Are you sure?" step, the way Outlook users get one from add-ins like VIPRE SafeSend, you need a Chrome extension.
Option 1: Undo Send, set to 30 seconds
Gmail holds every email for a few seconds before it really sends it. The default is 5 seconds, which is too short to notice anything. Make it 30:
1. In Gmail, click the gear icon, then See all settings.
2. On the General tab, find Undo Send.
3. Choose 30 seconds from the list.
4. Scroll down and click Save Changes.
After you send, an "Undo" link shows at the bottom left for 30 seconds. Click it and the email comes back as a draft.
Where it falls short: it only helps if you notice the mistake in those 30 seconds. Most wrong-recipient mistakes are noticed when the reply comes back, which is far too late. And Undo Send asks nothing. It does not show you who the email is going to.
Option 2: Schedule Send for anything important
For an email you want to read again with fresh eyes, click the arrow next to Send and choose Schedule send. Pick a time an hour from now. The email sits in the Scheduled folder, where you can open it, change it or cancel it before it goes.
Where it falls short: you have to remember to do it, on exactly the emails that matter. Nobody schedules the quick reply that turns out to go to the wrong Sarah.
Option 3: A real pause at Send
This is what people usually mean by "confirm before sending": when you click Send, something stops and shows you what is about to happen, and only sends when you say so.
Presend does this in Gmail. It is a Chrome extension that checks each email when you click Send. It has a list of built-in checks, and each can be set to Block, Warn, Note or Off. A check set to Block stops the send and shows "Hold on" with the reason, then Send anyway or Review message.
What you block on is your choice. The useful ones:
- External recipients. Stop whenever an email includes an address outside your company, with the outside addresses listed. This is the SafeSend-style check. More in our Gmail external recipient warning guide.
- Missing attachment. Stop when the email says "attached" and nothing is.
- Leaked API key / token and Sensitive number (SSN / card). Stop when the body has a password, key, card number or social security number in it. These are on Block by default.
- Your own rules, written in plain English, such as "Block any email to an outside address that mentions the merger".
Why not stop on every email
A confirmation on every single email gets clicked through without reading by day three. Pick the checks that matter for your work and leave the rest on Warn, which shows the finding next to your draft without stopping Send. We wrote more about that in why "Are you sure?" pop-ups stop working.
Which one to use
- Everyone: turn Undo Send up to 30 seconds. It costs nothing.
- Occasional big emails: use Schedule Send on them.
- Client-facing or regulated work: add a check at Send, so the pause happens on its own, on the emails that need it.
All three work together. Undo Send is still there after you click Send anyway.
Ready to try Presend?
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