Blackberry 9380 User Manual page 109

User Guide
11. Press the key > Close.
12. Press the key > Save.
Reset a blocked message counter
If you block messages, the blocked message counter tracks how many messages your BlackBerry smartphone has
blocked. You can set the blocked message counter back to zero.
1. On the home screen or in a folder, click the Options icon.
2. Click Security > Firewall.
3. Highlight a message type.
4. Press the > Reset Count or Reset All Counts.
S/MIME and PGP protected messages
S/MIME and PGP protected message basics
About signing and encrypting messages
If your email account uses a BlackBerry Enterprise Server that supports this feature, you can digitally sign or encrypt
messages to add another level of security to email and PIN messages that you send from your BlackBerry smartphone.
Digital signatures are designed to help recipients verify the authenticity and integrity of messages that you send. When you
digitally sign a message using your private key, recipients use your public key to verify that the message is from you and
that the message hasn't been changed.
Encryption is designed to keep messages confidential. When you encrypt a message, your smartphone uses the recipient's
public key to encrypt the message. Recipients use their private key to decrypt the message.
To send an encrypted PIN message, you must have a PIN and an email address for the contact in your contact list. Your
smartphone uses the email address in your contact list to locate a PGP key or certificate for the contact.
Sign or encrypt a message
You can sign or encrypt email and PIN messages.
1. When you are composing a message, change the Encoding field.
2. If necessary, change the Classification field.
Related information
Some signing and encryption options aren't available on my smartphone,
Encrypt an S/MIME or a PGP protected message with a passphrase
By default, your BlackBerry smartphone uses your certificate or PGP key to encrypt messages.
1. When composing a message, change the Encoding field to an option that uses encryption.
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