How to decrypt and un-sign a message programmatically using the OOM

Overview This blog post demonstrates how to decrypt and un-sign a message programmatically using the Outlook Object Model.   Encrypt email messages When you need to protect the privacy of an email message, encrypt it. Encrypting an email message in Outlook means it’s converted from readable in plain text into scrambled cipher text. Only the…


Certain Unicode characters are replaced with question marks for text properties set using UserProperties.Add

SYMPTOMS When trying to retrieve text UserProperty values via the Outlook Object Model from signed or encrypted messages, if the values contain extended Unicode characters, you will notice that certain characters are replaced by the question mark “?” symbol. For example, you use the following code to create a UserProperty object named myUserProperty. You then…

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