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5 Best Features of the New Hotmail...
Published:Tue, 18 May 2010 10:10:55 -0700
Tech bloggers often dismiss Hotmail, Microsofts webmail service, as an outmoded relic of the late 90s. However, its still the worlds most popular e-mail service, and the second mo......
White House Deputy CTO Reprimanded for ...
Published:Tue, 18 May 2010 11:43:02 -0700
A former Google staffer and current White House deputy chief technology officer has been reprimanded for using a personal e-mail account for official business purposes.......
Microsoft adds new tools, features to H...
Published:Tue, 18 May 2010 19:41:38 -0700
WASHINGTON: Hotmail is getting a facelift. Microsofts free e-mail service, the worlds largest with 360 million users, added a slew of new tools and features including the ability ......
Editorial: Gmail Privacy...
Published:Mon, 17 May 2010 22:48:59 -0700
UC Davis halted a two-month long trial of Googles Gmail earlier this month for faculty and staff due to fears regarding Googles privacy policies. However, Gmail simply has no peer......
Microsoft previews the new Hotmail expe...
Published:Tue, 18 May 2010 10:47:42 -0700
Microsoft has revealed a number of new details about its forthcoming update to the Hotmail e-mail service. And this is no small update with Microsoft seeming to rebuild Hotmail fr......
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e-Mail encryption

e-Mail encryption protocols

Popular protocols for e-mail encryption include:

  • S/MIME
  • TLS
  • OpenPGP
  • Identity based encryption
  • Mail sessions encryption

Mail sessions encryption

The STARTTLS SMTP extension is a TLS (SSL) layer on top of the SMTP connection. While it protects traffic from being sniffed during transmission, it is technically not encryption of e-mails because the content of messages is revealed to, and can be tampered with by, involved email relays. In other words, the encryption takes place between individual SMTP relays, not between the sender and the recipient. When both relays support STARTTLS, it may be used regardless of whether the e-mail's contents are encrypted using another protocol.

STARTTLS is also an extension of IMAP4 and POP3, see RFC 4616


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