Cisco Cisco Email Security Appliance X1070 Betriebsanweisung
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Cisco AsyncOS 8.5.5 for Email Security User Guide
Chapter 18 Cisco Email Encryption
Inserting Encryption Headers into Messages
Encryption Headers Examples
This section provides examples of encryption headers.
Enabling Envelope Key Caching for Offline Opening
To send a Registered Envelope with envelope key caching enabled, insert the following header into the
message:
message:
X-PostX-Suppress-Applet-F
or-Open
Indicates whether to disable the
decryption applet. The decryption applet
causes message attachments to be opened
in the browser environment. Disabling
the applet causes the message attachment
to be decrypted at the key server. If you
disable this option, messages may take
longer to open, but they are not
dependent on the browser environment.
This header overrides the default profile
setting.
decryption applet. The decryption applet
causes message attachments to be opened
in the browser environment. Disabling
the applet causes the message attachment
to be decrypted at the key server. If you
disable this option, messages may take
longer to open, but they are not
dependent on the browser environment.
This header overrides the default profile
setting.
A Boolean for whether to
disable the decryption
applet. Set to
disable the decryption
applet. Set to
true
to disable
the applet. The default value
is
is
false
.
X-PostX-Use-Script
Indicates whether to send JavaScript-free
envelopes. A JavaScript-free envelope is
a Registered Envelope that does not
include the JavaScript that is used to
open envelopes locally on the recipient's
computer. The recipient must use either
the Open Online method or the Open by
Forwarding method to view the message.
Use this header if a recipient domain's
gateway strips JavaScript and makes the
encrypted message unopenable.This
header adds an encryption setting to the
message.
envelopes. A JavaScript-free envelope is
a Registered Envelope that does not
include the JavaScript that is used to
open envelopes locally on the recipient's
computer. The recipient must use either
the Open Online method or the Open by
Forwarding method to view the message.
Use this header if a recipient domain's
gateway strips JavaScript and makes the
encrypted message unopenable.This
header adds an encryption setting to the
message.
A Boolean for whether the
JavaScript applet should be
included or not. Set to
JavaScript applet should be
included or not. Set to
false
to send a JavaScript-free
envelope. The default value
is
envelope. The default value
is
true
.
X-PostX-Remember-Envelope
-Key-Checkbox
Indicates whether to allow
envelope-specific key caching for offline
opening of envelopes. With envelope key
caching, the decryption key for a
particular envelope is cached on the
recipient’s computer when the recipient
enters the correct password and selects
the “Remember the password for this
envelope” check box. After that, the
recipient does not need to enter a
password again to reopen the envelope on
the computer. This header adds an
encryption setting to the message.
envelope-specific key caching for offline
opening of envelopes. With envelope key
caching, the decryption key for a
particular envelope is cached on the
recipient’s computer when the recipient
enters the correct password and selects
the “Remember the password for this
envelope” check box. After that, the
recipient does not need to enter a
password again to reopen the envelope on
the computer. This header adds an
encryption setting to the message.
A Boolean for whether to
enable envelope key caching
and display the “Remember
the password for this
envelope” check box. The
default value is
enable envelope key caching
and display the “Remember
the password for this
envelope” check box. The
default value is
false
.
Table 18-3
Email Encryption Headers
MIME Header
Description
Value