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S/MIME Support in Exchange 2003 E-Mail Clients

 

Topic Last Modified: 2005-05-19

The following table lists the clients available for use with Microsoft® Exchange Server 2003 and the availability of Secure/Multipurpose Internet Mail Extensions (S/MIME) support for each client.

S/MIME support in Exchange 2003 e-mail clients

E-mail client S/MIME operation Supported

Microsoft Outlook® 2000 SR-1 or later

Send clear text signed message.

Yes

Send opaque signed message.

Yes

Send encrypted message.

Yes

Read clear text signed message.

Yes

Read opaque signed message.

Yes

Read encrypted message.

Yes

Internet Standards clients (POP3 and IMAP4)

Send clear text signed message.

Supported in Exchange. Specific client must also support.

Send opaque signed message.

Supported in Exchange. Specific client must also support.

Send encrypted message.

Supported in Exchange Specific client must also support.

Read clear text signed message.

Supported in Exchange Specific client must also support.

Read opaque signed message.

Supported in Exchange Specific client must also support.

Read encrypted message.

Supported in Exchange Specific client must also support.

Outlook Web Access Premium with S/MIME Control

Send clear text signed message.

Yes

Send opaque signed message.

Yes

Send encrypted message.

Yes

Read clear text signed message.

Yes

Read opaque signed message.

Yes

Read encrypted message.

Yes

Outlook Web Access Premium without S/MIME Control

Send clear text signed message.

No

Send opaque signed message.

No

Send encrypted message.

No

Read clear text signed message.

Yes

Read opaque signed message.

No

Read encrypted message.

No

Outlook Web Access Basic

Send clear text signed message.

No

Send opaque signed message.

No

Send encrypted message.

No

Read clear text signed message.

Yes

Read opaque signed message.

No

Read encrypted message.

No

Outlook Mobile Access

Send clear text signed message.

No

Send opaque signed message.

No

Send encrypted message.

No

Read clear text signed message.

Yes

Read opaque signed message.

No

Read encrypted message.

No

Exchange ActiveSync®

Send clear text signed message.

No

Send opaque signed message.

No

Send encrypted message.

No

Read clear text signed message.

Yes

Read opaque signed message.

No

Read encrypted message.

No

 
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