Red Hat DIRECTORY SERVER 8.1 - 11-01-2010 Manual de usuario descargar pdf (Pagina 73)

GnuPG version 2.0.x is distributed with gpg-agent. Enabling this option makes

Enigmail use gpg-agent also for GnuPG version 1.4.x (this requires the gpg-

agent and pinentry tools to be installed).

Note that some distributions install Seahorse instead of gpg-agent, and this may

cause problems when using OpenPGP smart cards. If you use a smart card

for your key, then either use gpg-agent and enable this option, or unset it and

make sure the environment variable GPG_AGENT_INFO is unset prior to starting

Enigmail (since GnuPG expects gpg-agent to be running once it detects that

this variable is set). See also FAQ entry 11.1.8.

Use '<' and '>' to specify email addresses. Usually, email addresses are

surrounded by angle brackets (< >) to separate the full name part from the

email part, e.g. John Random Hacker <[email protected]>.

Deactivating this option removes the brackets from email addresses. This is

necessary to ensure compatibility with some provider service, like Hushmail,

that does not support brackets in email addresses. Hushmail is a provider for

OpenPGP encryption over the web, but key generated with Hushmail are not

fully compatible to OpenPGP.

This option should be normally turned on when encrypting, as Enigmail relies on

it to avoid potential confusions and hence security problems, but needs to be

turned off for Hushmail keys.

Hide SMIME buttons/menus hides the S/MIME button from the toolbar of the

mailclient interface. This option exists only on SeaMonkey 1.1, because

Thunderbird and SeaMonkey 2.0 and higher allow the user to customize the

whole toolbar. This option, if exists, is enabled by default in order to avoid to

confuse users.

Only download attachments when opened (IMAP only) enables an IMAP feature

that makes Thunderbird / SeaMonkey download only the first 35-40 Kb of a

message, downloading attachments only on demand. However, if an encrypted

message is larger than this size, it may happen that it is downloaded only in

part, its end will be missing, and hence Enigmail will fail to decrypt it.

If you use an IMAP inbox, and notice that Thunderbird / SeaMonkey sees some

of your mails as broken or reports an error when trying to decrypt them, disable

this option. The mailclient will then download the complete message at once.

Alternatively, you can click on the broken lock to download the message in full.

This problem often happens with Thunderbird 2. It should not appear with

Thunderbird 3, which by default downloads the whole message.

The text field Additional parameters for GnuPG allows you to have Enigmail call

the GnuPG executable with the parameters you prefer.

For instance, the figure at page 72 shows the additional parameters

--homedir X:\gnupg being passed to GnuPG; this tells GnuPG to go look

for the keyrings in the X:\gnupg directory instead of the default directory.

Finally, the Reset Warnings button controls the way Enigmail pops up the

interactive dialogs asking you to make a choice. If you ever asked Enigmail to

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