Have you ever sent an email to the wrong person by mistake? Have you ever sent an email and then realized a second too late that you forgot an important point, or could have worded things more carefully, or even misspelled something obvious, like your own name.
 
Luckily, in Outlook you can set up a safety net for the Send button. It is called “delayed send.” You may find that it saves you a lot of potential embarrassment. Delayed send is a simple idea: When you hit Send, Outlook automatically retains the message in your Outbox folder for a short length of time (for instance, one minute) before sending. Most times you won’t notice the delay. And if you hit Send and then realize you made a mistake, you can go to your Outbox, open up the message, modify it, and then re-send it – and the recipients never see the mistake.
 
But what about e-mails that need to be sent immediately? With a little more effort you can set up Outlook so that if you tag a message as urgent, it will be sent without the delay. Here’s how you set up delayed send in Outlook 2007:
 
1. Go to Tools>Rules and Alerts.
2. Click New Rule.
3. Select Check messages after sending and then click Next.
4. Click Next again.  When Outlook confirms that you want this rule to apply to every message you send, click Yes.
5. Check the checkbox next to defer delivery by a number of minutes:

7. Click Finish.
8. If your mail server is Microsoft Exchange, Outlook will tell you that this is a client-side rule, which is fine; click OK.
9. Click OK to close the Rules and Alerts window.

The exception to the rule: It’s important to remember that this delayed-send rule will apply to every message you send. There may be times when you don’t want the delay in place. For instance, you may want to send mail immediately. Or, you may want to delay the delivery of a single message for longer than the rule specifies. (The delayed-send rule will override any delay-delivery settings you put on a single message, so it could cause messages to be sent sooner than you want.) If you want to be able to send mails without triggering the rule, you can set up category that exempts mail from the delayed-send rule. Here’s how to do that:

1. Tools>Rules and Alerts.
2. Select the delayed-send rule that you just created and click Change Rule > Edit Rule Settings.
3. Click Next, and click Yes for the “apply to every message” prompt.
4. Click Next again.
5. Under “Are there any exceptions,” check the checkbox next to except if assigned to category category.

7. Click New to create a new category.
8. Name it “Urgent” (or whatever you prefer) and click OK. (Note that some people who receive your messages marked in this manner may see the category attached to your message; it’s best to choose a category name that you don’t mind other people reading.)
9. You should now see the “Urgent” category checked:

10. Click OK.  You should now see that the rule will only apply to messages that don’t have the “Urgent” category:

11. Click Finish.

Then you can do the following to mark an individual mail as urgent before sending it:

1. Home tab, click the dialog launcher () for the Options chunk:

2. Click on the Categories button and choose “Urgent.”
3. Click Close.