epa-mail-aliases

epa-mail-aliases is a variable defined in `epa.el'.
Its value is

nil

Documentation:
Alist of aliases of email addresses that stand for encryption keys.
Each element is a list of email addresses (ALIAS EXPANSIONS...).
When one of the recipients of a message being encrypted is ALIAS,
instead of encrypting it for ALIAS, encrypt it for EXPANSIONS...

If EXPANSIONS is empty, ignore ALIAS as regards encryption.
This is a handy way to avoid warnings about addresses that you don't
have any key for.

The command `epa-mail-encrypt' uses this.

You can customize this variable.

This variable was introduced, or its default value was changed, in version 24.4 of Emacs.