You might not be able to open an attachment in an encrypted message for the following reasons:
- Your administrator might have set options to prevent you from opening attachments in encrypted messages.
- The message might have been encrypted with an algorithm that isn't supported. To view which algorithms your BlackBerry smartphone supports, click the Options icon. Click
S/MIME or PGP. In the Encryption section, view which content ciphers are selected.
- Attachments in the .pgp file format aren't supported.
- If you are using the PGP Support Package for BlackBerry smartphones, you can't open an attachment in a PGP protected message that was encrypted using the OpenPGP format by an IBM Lotus Notes client working with PGP Desktop Professional or that was encrypted by the PGP Universal Server.