Red Hat DIRECTORY SERVER 8.1 - 11-01-2010 Manual de usuario descargar pdf (Pagina 61)

8.6. Per-recipient rules

Enigmail features an advanced per-recipient rule editor that, for any recipient,

allows you to specify in advance whether to sign, encrypt, or use the

PGP/MIME standard instead of inline PGP.

Per-recipient rules also allow you to specify which key to use for an intended

recipient of an encrypted message. By default, Enigmail first searches the per-

recipient rules and looks up for a rule matching the recipient; if no rule is

specified (as it is the case after a fresh install of Enigmail), Enigmail selects the

key with an user ID matching the recipient.

8.6.1. Per-Recipient Rules Editor

To edit per-recipient rules, select OpenPGP → Edit Per-Recipient Rules.

The picture below shows the Per-Recipient Rules Editor window with one

created rule.

I participate in the mailing list for the developers of Enigmail and, as a habit, all

subscribers always sign and encrypt all messages to the mailing list. A mailing

list is just a list of physical recipients and as such does not own a key pair, as

this would made no sense. Therefore, to encrypt a message for a mailing list, I

have to encrypt it with the public keys of all people that subscribed to the

mailing list (of course, I need to know who the subscribers are, and I need to

have their public keys).

For this purpose, I wrote the above rule, which says: “When sending a message

to the address specified in Email, always sign it, always encrypt it with all the

public keys specified in OpenPGP Key(s), and never use PGP/MIME”.

If you create more than one rule, they are evaluated in order from top to bottom.

You can change the rules order by using the buttons Move Up and Move Down,

while Delete will delete a rule.

The Add button adds a new rule, and Modify modifies an existing rule. Clicking

these buttons will bring you to the Recipient Settings window.

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Red Hat DIRECTORY SERVER 8.1 - 11-01-2010 Manual de usuario Pagina 61