Yippy, they added UNDO SEND feature...

<blockquote>
Undo Send
by Yuzo F

Oops, hit "Send" too soon? Stop messages from being sent for a few seconds after hitting the send button
</blockquote>

Once you have Undo Send actiavted, you only get the option of 5 second delay to hit the Cancel link. unfortunately, i just tried it with 5 seconds and it wasn't enough time. Would be great if they gave you more time like 10, 15, 20, 25 and 30 seconds delay.

YESSSS! We've been heard! :D
Maybe it needs some fine tuning, but it's here!

http://gmailblog.blogspot.com/2009/03/new-in-labs-undo-send.html

Very nice feature!

The drop-down in the Settings page has 0 and 5 seconds for the delay... Maybe at some point they'll add more options like 10, 15, 20 seconds etc...

What I mean is that it will be easy for Google to add additional delay points because the drop-down in Settings is already there...

Probably Gmail can conduct user studies to find out, on average, how long it takes a person to regret sending an email. I guess 10 seconds of delay won't be that significant (unless you're a super last-minute person who sends out applications just 10 seconds before the deadline, not even giving any chance for network breakdown)

mbegin @Keith
You have to consider that browsers may get frozen at some point (ex: loading another site in another tab or window, and that site may be load slow ...) or even the CPU lags, so 5 secs is not enough.... 15 secs is perfect.

GMAIL, please increase the delay options.

I tend to re-read before pressing send, but there's still that moment of panic after – did i send it to the right person, did i accidentally insult everyone, what day is it, etc ;-)

10-seconds-delay option is available in Settings...

Cookie, in my settings page I only see a combo box letting me choose between "0" and "5" seconds... do you see a "10" there?

I have two AFYD accounts, and one of them is indeed showing a "10 seconds" option right now. The other one still only has 0 and 5.

Would it be possible to cofigure the delay? Also it will be a good idea there's an option to toggle a "process now" button by which send action is disabled and a batch action is initiated on clicking the "process now" button.

Yes, I saw a "10" option there...

http://tw.fancool.googlepages.com/gmail_undo.gif

I appears that Google is collecting user experience (via Google Groups):

http://groups.google.com/group/gmail-labs-help-send-canceling/topics?pli=1

With that drop-down, it will be easy enough for Google to allow us longer delays... I'm only seeing 0 and 5 right now on my accounts, but 10 would be nice.

This could also be good for those instances where you accidentally hit the "send" button before your email is complete. This is a good option to have, even if it goes unused most of the time.

Maybe this Undo Send feature has same users than this
http://blogoscoped.com/archive/2008-10-08-n10.html

Gmail feature has. And no need to smiley now

Minutes after reading this and enabling the feature in Gmail, I just mistakenly marked all 100+ undead items in Google Reader as read. How ironic... :(

"How many of you often only start to proofread your email after you hit Send?"

I don't do that so much, but I do often press delete all on the spam page and only then notice a non-spam one, by which time it's gone forever!

i would love even 20 seconds.

I wouldn't mind a 5-minute one, so if I re-read it I will still have time to undo it.

What harm is there in at least giving the option?

In addition to this simple technique to 'unsend' messages, I think they also need to create a 'real' undo or recall function that works like Outlook does on Exchange. Obviously, this would only work for Gmail > Gmail messages since it would only work when both parties are on Google's servers. If the recipient has not read the email or there was no service (like POP3) that pushed it from the server yet, then the sender should still have the option to Undo or Recall the email.

I think this feature would attract many more users to Gmail as it would be relatively unique in the world of online email services and provide Gmail exclusive functionality.

Also, they really need a 'Send Later' feature where you define exactly when you want the message sent. Of course, this would require a type of 'Outbox' folder/label.

que

I believed one of the Google April Fools for like 5 minutes before I figured out they were talking about "send in the past" rather than "send later".

"Send later" is invaluable feature in my books.

>> Of course, this would require a type of 'Outbox' folder/label.

The Outbox label already exists... It's used for Offline Gmail.

I didn't realize the Outbox was there for Offline mode. So, now all they need to do is enable the Send Later feature – assuming they already have it in use internally.

There are a number of services to let one send e-mail for future delivery. If you want to send to yourself it may be called a reminder service. There are also services to send text messages or phone calls at a future time.

There are a number of caveats. The recipient's address may no longer be active or valid at the future time. The sender's address or reply address may no longer be active or valid at that time. In the future a receiving server may require authentication. The e-mail may be misdirected into a spam folder. The sending server may no longer be functioning at the scheduled date and time.

The services in the below list let you compose the message on their server. Note that I have not tried most of these. These are not inteded for very short delays (e.g. ten seconds) discussed earlier.

As I recall there used to be a service that let you send an e-mail to them, that they forwarded at the appropriate time. The message you sent them contained both the delivery instructions (date, time, address) and the message. I can not find that now. It may no longer exist.

http://mailtothefuture.org
http://www.latergator.ca
http://www.lettermelater.com
http://mail.in.com/active18/featurelist.php#feature2

"Extreme Undoing"

http://geekandpoke.typepad.com/geekandpoke/2009/03/extreme-undoing.html

[Moved from "Undo Send Finally Here" – Tony]

Cut from Google Friends Newsletter posted Tue, 31 Mar 2009 15:19:58 -0700 (PDT) – all of 15 minutes ago!

[...] Ever hit the send button a moment too soon and wish you had a few seconds to undo it? Well, now you can with the "Undo Send" button. [...] Turn on these experimental features and more from the "Labs" tab under "Settings."

(I don't have it yet, but some of you might).

Today, will Gmail Labs introduce Undo Undo Send ?

More commonly known as "Redo Send" perhaps? :P

The 10 second limit is available now!

Yep, I have 0, 5, and 10 second options in my drop-down now too.