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Monday, December 20, 2004

Digitally Signed Email

So, today I got my first digitally signed email, a Mac.com email sent to a Hotmail account, but read in MSN Explorer. I'm not sure who's responsible for checking for digital signatures, MSN or Hotmail, but I applaud it either way (and I especially applaud Apple for using it). Still, shoudn't digitally signed email not wind up with the rest of the junk mail?

1 Comments:

Blogger mvaneerde said...

Digitally signed mail is nothing new. It's verified by the receiving user agent - your MSN Explorer, or Outlook, or whatever.

Most attempts to use digital signatures as a means for bypassing spam checks are trivially defeated by spammers just getting themselves digital signatures and signing their spam.

Yahoo has been looking into a way of doing this called "DomainKeys". This would serve the same function as Microsoft's proposed "Sender ID" standard - namely, it would be able to prove where an email came from.

Myself, I favor PGP - you digitally sign the content, not the email.

3:45 PM  

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