[Dovecot] Execution of external commands from Pigeonhole sieve

Does anybody knows if there are some method to call an externall command from sieve? Is xexec plugin is what i am looking for? Is it avaiable for Dovecot 1.2?

__ http://wiki.dovecot.org/Plugins/xexecI am using dovecot 1.2 and sieve 0.1.17.

I want to call ripmime from sieve to save attchments from mails in a user account.

Thanks for your feedback, Greetings,

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Andrés Fernando Yacopino