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Exchange Online Email Encryption

Posted on 2012-09-11
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Last Modified: 2012-09-30
Hi,
I probably need a starting point to implement secure email. Secure Email means to me encryption of the content of the mail, so that only the receiver could decrypt the message.

For my point of view this means implementing a Public Key (PKI) Infrastructure. But I am not sure, if this is the right, easy to maintain and best way.

We currently have a Windows 2008 Domain, Hosted our Exchange by Microsoft in Office365. I posted this to receive some hints, maybe someone else has already "secured" the Office365 mails, Maybe How-Tos and best practices.

Regards,
hg
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Question by:hgraesslin1
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Expert Comment

by:Matt_D_Green
ID: 38388994
Do you want to encrypt sent messages, or all messages in the user's mailbox (i.e. "at rest")?  If you want to encrypt messages when they're sent, Microsoft has an encrypted mail option for an additional fee, as do other hosted sites.  That will be your best option with Office 365.  If you want to encrypt messages at rest, in the user's mailbox, Vaultive has a solution for a monthly fee that requires an on-premise server (virtual or physical) and holds the encryption keys on-premise.
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Author Comment

by:hgraesslin1
ID: 38389768
I really do not see anything in Office365, so I posted here a service request. Do you have a hint where to search in Office365 ?
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Assisted Solution

by:Matt_D_Green
Matt_D_Green earned 800 total points
ID: 38390887
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Author Comment

by:hgraesslin1
ID: 38421403
Well, Using Exchange Mail Encryption with Office365 is possible, all hosted by Microsoft.

Now we decided to use Verisign for Secure Email, and we fetched certificates for Windows / Outlook 2010 (http://www.symantec.com/verisign/digital-id), Everything is fine, as long as you work with Outlook 2010. But here encrypted email messages sent are no longer visible in Office365, so is there a way to import the digital certificates received from a "third party CA" as Verisign into Office365, meaning the Web Interface ?
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Accepted Solution

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hgraesslin1 earned 0 total points
ID: 38435630
Concerning the S/MIME support for OWA, I did some further research and found that it is not supported in OWA as contained in the following articles.

http://community.office365.com/en-us/forums/176/p/23499/110869.aspx
http://community.office365.com/en-us/f/160/p/2681/9881.aspx
http://community.office365.com/en-us/forums/160/t/580.aspx
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Author Closing Comment

by:hgraesslin1
ID: 38448387
Fixed my Problem
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