Microsoft Outlook cannot open an encrypted message. Can p7mViewer open it?
Each encrypted message can be decrypted using one of intended private keys (one for each recipient and one for sender). If you own a right private key, p7mViewer will be able to view the message. If you do not own a right private key, p7mViewer will only let you see the list of recipients of the message. This can help you to check if you are one of the intended recipients and if you can try to decrypt by viewing it on the machine where you have your private keys installed. However, if the message has been damaged (eg. modified by a mail server) but you are a true recipient of the message, p7mViewer will probably be able to decode and display as much of the content as possible. Note: to view an Outlook message using p7mViewer, drag the message from Outlook into p7mViewer.
