Hmmm. Once very experienced email programmer says it's impossible, and a few companies say that they're already supplying it. I'm intrigued, and if I can do so without endangering my own privacy, I may sign up for a trial account, just to see if and how it works. (BIgString, at least, seems to be available only in a Web version, not as a downloadable client.)
All they seem to say is "patent pending technology allows our email users to recall, modify or set an
expiration date for emails that have already been sent. These emails can be
erased, modified or expired even if the recipient has read them.... The email is not "deleted" from the recipient's computer. The
message that the email refers to is dynamically generated, and therefore you
have full control over it."
My guess would be that this means that a script in the email calls some scripting platform on the recipient's machine to generate it, which would mean, of course, that it's far from foolproof: If the recipient's machine doesn't have that gadget, or if it's turned off for security reasons, the self-destruct won't work, though I suppose it would be possible to make it a little more foolproof by arranging for the mail to be unreadable if the scripting platform were turned off .
An article in Forbes ( http://www.forbes.com/2000/09/12/feat.html ) also
claims to discuss a few technologies now in use. (Forbes may be the most serious of the US business magazines, for the little that's worth.)
As I said, if I
manage to sign up for some free version I will find out if it exists.
At least now I know that it will never be a feature in Pegasus. And I have learned something about people.
Thanks.
Cassy.
<p>Hmmm.&nbsp; Once very experienced email programmer says it's impossible, and a few companies say that they're already supplying it.&nbsp; I'm intrigued, and if I can do so without endangering my own privacy, I may sign up for a trial account, just to see if and how it works.&nbsp;&nbsp; (BIgString, at least, seems to be available only in a Web version, not as a downloadable client.)</p><p>All they seem to say is "patent pending technology allows our email users to recall, modify or set an
expiration date for emails that have already been sent. These emails can be
erased, modified or expired even if the recipient has read them.... The email is not "deleted" from the recipient's computer. The
message that the email refers to is dynamically generated, and therefore you
have full control over it."
My guess would be that this means that a script in the email calls some scripting platform on the recipient's machine to generate it, which would mean, of course, that it's far from foolproof:&nbsp; If the recipient's machine doesn't have that gadget, or if it's turned off for security reasons, the self-destruct won't work, though I suppose it would be possible to make it a little more foolproof by arranging for the mail to be unreadable if the scripting platform were turned off .</p><p> An article in <i>Forbes ( </i>http://www.forbes.com/2000/09/12/feat.html<i> ) </i>also
claims to discuss a few technologies now in use.&nbsp; (<i>Forbes</i> may be the most serious of the US business magazines, for the little that's worth.)</p><p>As&nbsp; I said, if I
manage to sign up for some free version I will find out if it exists.&nbsp;
At least now I know that it will never be a feature in Pegasus.&nbsp; And I have learned something about people.
</p><p>Thanks.</p><p>Cassy.&nbsp;</p>