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Disable "forward/reply" option in an email

 
Jait Thomas
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Is there is any way in which Forward/Reply option in an email be disabled? I checked for "Alternate:" option as per email specs. But I doubt it will be disabled across all mail clients. Any suggestions??
 
Ulf Dittmer
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You can't - it's up to the mail client what to do with an email. And even if you could, there's nothing preventing the user from copying the message contents and sending those to whoever she pleases.

What is the reason for wanting to do this?
 
Jait Thomas
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A crazy requirement where-in sensitive information sent to the user by email, shouldn't be allowed to forward to any other mail. I still know as you said, that users are intelligent enough to copy the content and do whatever they want with it. But that is how the requirement is.
 
Rob Spoor
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Then don't send the contents per email, but a link to the actual contents instead. You can then have the user log in before he/she can see the content.
 
Jait Thomas
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I thought of passing it as link too. But then the question is link can also be passed around. Right? Anyone who access the link can access that info.
 
Ulf Dittmer
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That's why Rob suggested a login for accessing the link.
 
Jait Thomas
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Its a good suggestion in fact. But the info that is sent, is itself info for logging in.
 
Rob Spoor
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You could link the login to the IP address of the first machine from which the user logged in, then allow only that combination. That has some consequences as well though:
- the user you sent the mail to must be the first to login, or he/she can't login anymore
- the user can't switch machines; logging in from both at home and at work is not possible
 
Paul Clapham
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Jait Thomas wrote:Its a good suggestion in fact. But the info that is sent, is itself info for logging in.


Well, yeah. If you send somebody the password for logging into a secure system, there's not much you can do if they choose to give the password to somebody else. It's possible to attempt technical fixes to that (e.g. what Rob just said, or by making the password work one time only, and so on). But often those fixes make it inconvenient or annoying for your customer to use that system if they don't work correctly. You need to look for a reasonable solution and not for a perfect solution which will always work the way you want it to. Perfect solutions don't exist on the Internet.
 
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