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How to Encrypt Emails in MS Outlook using S/MIME

Robin Thomas | June 17th, 2015 | general

Now a days, Emails are the main source for the Business and Personal Communication. So everyone wants to enhance the security of their important mails. In this blog, I will explain an easiest way to secure these mails by encrypting, using Secure/Multipurpose Internet Mail Extensions (S/MIME). An encrypted message ensures that the content of the message has not been modified in between the communication process. The process of encrypting the email is quite simple and is explained below:

Get Encryption & Signing Certificates (Digital ID):

To perform the encryption, a Digital ID (Email Certificate) is required. You can download Digital ID (Email Certificate) from the source recommended by Microsoft but most of them are paid. If you want free Email certificate for the purpose of encryption then you can use COMODO (Free S/MIME Certificate Provider) for the encryption

How to Configure S/MIME Certificate in Outlook

To Configure the S/MIME certificate in Outlook follow the steps mentioned below:

  • Click on the File Tab >> Options >> Trusted Center >> click on the Trust Center Settings button

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  • Then click on E-mail Security >> Settings

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  • In the next dialog window click on the New Button

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  • Enter a name of your Certificate >> in the field of Cryptography Format ensure that S/MIME is selected >> Click on Choose button and here upload your certificate.
  • Make a check on Send these certificates with signed messages

How to Encrypt the Emails in Outlook

To encrypt a message in Outlook at first click on the Option >> Permission group and then click on the Encrypt button. Now send the message to whom you want to send.

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Robin Thomas

Robin Thomas is a technical writer. He wrote plenty of articles or blogs regarding Exchange server mailbox corruption problem and share its precise solution on Google Plus, Twitter and Facebook.