It is possible that their outlook has not been properly configured to send encrypted e-mail, they do not have a user certificate configured and/or created, or that they do not trust or have a trusted CA in the domain where they are located.
Last Wiki Answer Submitted: March 5, 2008 7:08 pm by Jerry Lees5,320 pts.
All Answer Wiki Contributors: Jerry Lees5,320 pts.
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Yes, in order to send encrypted email, the remote user’s certificate needs to be installed or available so that you can encrypt the message using that certificate.
It sounds like you have their certificate, they don’t have yours.
Give us a little more information about your set up (as has been asked) and we’ll be able to help you better.
are the two domains in the same forest? (windows active directory forest), or are they two separate companies?
Yes, in order to send encrypted email, the remote user’s certificate needs to be installed or available so that you can encrypt the message using that certificate.
It sounds like you have their certificate, they don’t have yours.
Give us a little more information about your set up (as has been asked) and we’ll be able to help you better.