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pramod1Flag for United States of America

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I have been asked a question

Do you use an email encryption solution (for example, S/MIME or PGP)?

we have exchange server 2007 and use outlook 2010 and above
 mail apps, on windows tablets  iphone

I have said s/mime , is it correct
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Ivan
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PGP can be 3rd party plugin to you Spam Filtering Solution. S/MIME as per above comment from Ivan.
Best to check with the Exchange Admin, he probably has the information documented from server build implementation :)
If you don't know then you probably are NOT using any form of encryption.  S/Mme requires a certificate for all recipients and senders in a message and uses PKI ( public key infrastructure)  The sender encrypts with their private key and the recipients public key.. The recipient decrypts using their private key and the senders public key. This means the previously you have exchanged keys.  The easiest way is to simply sign a message and the recipient can then import that key into their certificate store.
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what is the general email encryption used by all across the world
Email by design is not secure nor is delivery guaranteed.
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so how most of the companies encrypt email, is it s/mime or TLs or third part

what is the common thing most compnies use