Subject: Problems with ciphered e-mail messages

From: Miguel Angel Díaz <[email-masked]>
Date: Fri, 25 Oct 2002 12:51:55 +0200

Hi folks,

 I've detected the follow strange behaviour with Outlook Express (and maybe all e-mail applications) and ciphered messages with key public certificates (KPC):

 I want to send a message wich is ciphered using the KPC of the destined person. The out mail server (smtp) is configured to add all outing messages a footer (like one is added to the end of this messages) with data of my company like company name, address, phone, etc. When the message is received by the destined person, it is open whith Outlook Express (several releases are tested) and this message can't be shown. Instead, a message with the footer is shown in the body's message and a file is attached with name "smime.p7m". The content of this file is ciphered and can't be shown.

I think the problem is that the message is locally ciphered in the host, and then this ciphered message is modified when the mail server add the footer. When the client mail application tries to open it at the destination, it detect that  the original ciphered message was modified and don't show the ciphered part.

Am I wrong?

If I'm rigth I have some questions:

1.- Doesn't the mail client application be able to show the message ciphered part?. 

2.- How can I see the message ciphered part.

3.- Does this behaviour mean that e-mail securited with KPC and this kind of service provided by the mail servers (addition of  footer) are incompatibles?

4.- Is there any way to solve this and to allow all ciphered messages with footers can be shown in the client mail application?

Thanks in advance.

Best regards.
Miguel A. Díaz

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