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-- David Verdin said the following on 5/28/10 7:41 AM:
>     * *User level messages customization*
>       
> <http://www.sympa.org/manual_6.1/message-handling?#customizing_messages>.
>       [J. Jourdan] It is now possible to customize messages content with
>       data specific to each subscriber. The custom attributes are as
>       parameters for TT2 tags in messages distributed. This adds notably
>       the possibility to add authenticated unsubscribe URL to message
>       footers.

Oh, do you have an example of how this might look in the message.footer?