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Signed email and MS Outlook

Dec 23, 2010 at 12:40 PM
Edited Dec 23, 2010 at 12:44 PM

I have had problems reading the signed email with various Outlook versions (2003, 2007; express is ok)

I was using the signing method in the example \MailSystem\Samples\CS\ActiveUp.Net.Samples\SMTP\SendingSignedEmails.cs:

message.SmimeAttachSignatureBy(signer);

This method works fine, but for any reason the MIME encoding is NOT recognized by Outlook.

Using the method 

message.SmimeEnvelopeAndSignBy(signer);

works fine.