I have user running windows xp on a laptop and on a workstation. When he was in this country i setup s/mime for him on his Eudora client with the s/mime plug in from qualcomm. He was able to send and receive encrypted emails to users in our office.
When he went back to Germany and exported his key to his desktop using the same Eudora client and the S/mime Plug in from qualcomm. He can read and encrypt email he now receives on his workstation but any of the emails he received on his laptop prior to install the cert he cant read.
what should i tell him to try ?