Sieve (RFC 5228) is a language for filtering e-mail messages. It is designed to be implementable on either a mail client or mail server. It is meant to be extensible, simple and independent of access protocol, mail architecture and operating system. It is suitable for running on a mail server where users may not be allowed to execute arbitrary programs, such as on black box IMAP servers, since in
{{#tags}}- {{label}}
{{/tags}}