Cisco Cisco Email Security Appliance C650 Guía Del Usuario
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Cisco AsyncOS 9.1 for Email User Guide
Chapter 19 S/MIME Security Services
Signing, Encrypting, or Signing and Encrypting Outgoing Messages using S/MIME
Step 4
Submit and commit your changes.
Note
Use the
smimeconfig
command to create sending profiles using CLI.
Edit an S/MIME Sending Profile
Step 1
Click Mail Policies > Sending Profiles.
Step 2
Click on the sending profile that you want to modify.
Step 3
.
Step 4
Submit and commit your changes.
S/MIME Sign Mode
Choose the mode of S/MIME signing. Possible values are:
•
Opaque. An opaque-signed message contains the message and
signature combined in a single part and can be read only by verifying
the signature.
signature combined in a single part and can be read only by verifying
the signature.
•
Detached. The signature information is separate from the text being
signed. The MIME type for this is multipart/signed with the second
part having a MIME subtype of application/(x-)pkcs7-signature.
signed. The MIME type for this is multipart/signed with the second
part having a MIME subtype of application/(x-)pkcs7-signature.
Note
You need to set this field only if you choose one of the following
S/MIME modes: Sign, Sign/Encrypt, or Triple.
S/MIME modes: Sign, Sign/Encrypt, or Triple.
S/MIME Action
Choose the action that Email Security appliance must take if the recipient's
public key is not available. Possible values are:
public key is not available. Possible values are:
•
Bounce. The message is bounced to the sender if any one of the
recipient’s public key is not available.
recipient’s public key is not available.
•
Drop. The message is dropped if any one of the recipient’s public key
is not available.
is not available.
•
Split. The message is split. The message to the recipients whose
public keys are not available are delivered without encryption and the
message to the recipients whose public keys are available are
encrypted and delivered.
public keys are not available are delivered without encryption and the
message to the recipients whose public keys are available are
encrypted and delivered.
Example: Assume that you are sending a message to
bob@example1.com and dave@example2.com and the public key of
dave@example2.com is not available. In this scenario, if you have
selected Split, Email Security appliance will:
bob@example1.com and dave@example2.com and the public key of
dave@example2.com is not available. In this scenario, if you have
selected Split, Email Security appliance will:
–
Deliver the message to bob@example1.com after encrypting it.
–
Deliver the message to dave@example2.com without encrypting
it.
it.
Note
You need to set this field only if you choose one of the following
S/MIME modes: Encrypt, Sign/Encrypt, or Triple.
S/MIME modes: Encrypt, Sign/Encrypt, or Triple.