Topic: delete, alter or recall sent emails.

[Clive]

Destroy those old love letters (emails) to your ex.  Big String is a new service that use HTML email to allow you to delete, alter or recall sent emails. Amazing that it took this long for someone to come up with this.

http://www.bigstring.com/

How does that work then?  I presume that the e-mail doesn't get stored on the recipient's computer as it's web based?  

[DJ]

Our internal email system at work has had the option to recall emails or delete emails you've sent to somone else (on their computer - unless they take "ownership").  Its really handy if you send an email about the next night out to the boss instead of a mate  

DJ

[Simon]

Outlook can delete sent e-mails:

This feature requires you to be using a Microsoft Exchange Server e-mail account.

You can recall or replace a message only if its recipient is logged on and using Microsoft Outlook and has not read the message or moved it from their Inbox.

Presumably you have to use bigstring.com's servers for it to work, but it's probably the same prioncipal.