S/MIME Support in Exchange 2003 E-Mail Clients
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 |