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Find out who gives away your email address with Gmail trick

January 7th, 2007 by Jabez Gan [MVP]

I do not mind if you are using Gmail than Windows Live Mail (formerly Hotmail), as I’m a Gmail fan myself (loads way faster for me) 😉

Have you ever wonder which website gave out your email when you register yourself in some website? Here’s a simple trick you can use:

If your Gmail login name was and you went to to fill out a registration form, instead of just entering as your email, enter it as instead. When Gmail sees a “+” in an email address, it uses all the characters to the left of the plus sign to know who to send it to. In this example it would still send it to

Now whats cool is if you search Gmail for username+samplesitecom, you will see all massages that were sent to that email address.

To see who is responsible for sending a specific message click the Show Details link and you will see the complete address.

Does it work? I haven’t try it out but reports say that it works!

Does Windows Live Mail have something similar? Is there something in the works? What do you think of this feature? Leave a message! 🙂


Update: According to Kevyn, Yahoo Mail already has this implemented. It is called “AddressGuard”. You use [basename]-[keyword] Thanks Kevyn!

Posted in Computing | 2 Comments »

This entry was posted on Sunday, January 7th, 2007 at 9:03 pm and is filed under Computing. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.

2 Responses

  1. Kevyn Says:

    Yahoo! Mail already has it. It’s quite different, but it’s useful to create temporary addresses called alias. This technology is called AddressGuard, and gives the possibility to create a [basename]-[keyword] address. And you can choose any [keyword] as you want.

  2. Krommentaar » Blog Archief » Wie heeft je email adres weggegeven ? Says:

    […] GMail heeft daar een leuk truukje voor, heb ik net vernomen: als je je registreert op een site (bv. “”) en er wordt gevraagd om een email adres in te geven, geef dan i.p.v. je normale gmail-adres (bv. een combinate van je email adres ÃƒÂ©n de naam van de betreffende site in, gescheiden door een “+” teken (in het voorgaande voorbeeld wordt dat dus […]