For each supported command and associated response, the format is the same as defined by RFC 5804, with the exception that when Sieve scripts are involved in the exchange they are attached to the mail with the MIME type of 'application/sieve' rather than being embedded in the command.
The command is written in the subject header of a mail received by this mailet. Responses from this mailet are sent to the sender as mail with the message body containing the response.
The following commands are supported:
The mail server on which this mailet is deployed MUST robustly authenticate the sender, who MUST be local.
Sieve provides powerful email processing capabilities that if hijacked can expose the mail of individuals and organisations to intruders.
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