Problem with encryption

[Brian Sadler]

I recently had to update a colleagues public encryption certificate so she
could send encrypted emails. Ever since that, she gets the following error
message when she tries to send email:

Microsoft Outlook had problems encrypting this message because the following
recipients had missing or invalid certificates, or conflicting or
unsupported encryption capabilities. <insert email addresses> Continue
will encrypt and send the message but the listed recipients may not be able
to read it.

Options: Send Unencrypted, Cancel, Help

Any idea on how to fix this. When we get email from her now, it also makes
us open the message before we can view or reply to it. How can I fix this
as well.

Thanks.

Brian

 

[Guest]

Brian,

You must not have stored the public key of that recipient that you are
sending email to. In Outlook Help look up "Add a recipient's certificate to
your contact list"