2000-11 2011-12-05 vendor-controlled (name begins with "vnd.") First Come First Served IETF-controlled (no "vnd." prefix) Standards track or IESG-approved experimental RFC body Provides a test for matching against the the body of the message being processed comparator-* (anything starting with "comparator-") adds the indicated comparator for use with the :comparator argument (Sieve base spec) convert adds a new Sieve test and action that enable Sieve scripts to perform data conversions on the message being delivered. copy date The "date" extension gives Sieve the ability to test date and time values. editheader Adds actions 'addheader' and 'deleteheader' that modify the header of the message being processed enclose adds the "enclose" action for enclosing a message with a wrapper. encoded-character changes the interpretation of strings to allow arbitrary octets and Unicode characters to be represented using US-ASCII (Sieve base spec) enotify adds the 'notify' action for notifying user about the received message. It also provides two new tests: valid_notify_method checks notification URIs for validity; notify_method_capability can check recipients capabilities. envelope adds the 'envelope' test for testing the message transport sender and recipient address (Sieve base spec) envelope-deliverby The "envelope-deliverby" extension extends the envelope test to allow checking of information associated with the Deliver-By ESMTP extension defined in . envelope-dsn The "envelope-dsn" extension extends the envelope test to allow checking of information associated with the DSN ESMTP extension defined in . environment The "environment" extension provides a new environment test that can be used to implement scripts that behave differently when moved from one system to another or otherwise operated in different contexts. ereject adds the 'ereject' action for refusing delivery of a message. The refusal should happen as early as possible (e.g. at the protocol level) and might not preserve the exact reason for refusal if it contains non-US-ASCII text. extlists Adds the ":list" match type to certain Sieve tests, and the ":list" argument to the "redirect" action. The ":list" match type changes tests to match values against values stored in one or more externally stored lists. The ":list" argument to the redirect action changes the redirect action to forward the message to email addresses stored in the externally stored list. extracttext adds the "extracttext" action for extracting text from a MIME body part. fileinto adds the 'fileinto' action for delivering to a mailbox other than the default (Sieve base spec) foreverypart adds the "foreverypart" and "break" actions for iterating through MIME parts of a message. ihave The "ihave" extension provides a means to write scripts that make use of other extensions only when they are actually available. imap4flags Adds actions and tests for manipulating IMAP flags index The "index" extension provides a means to limit header and address tests to specific instances when more than one field of a given type is present. mailbox adds test for checking for mailbox existence and a new optional argument to fileinto for creating a mailbox before attempting mail delivery. mboxmetadata adds tests for checking for mailbox metadata item existence and for retrieving of a mailbox metadata value. mime adds the ":mime" and ":anychild" tagged arguments to the "header", "address", and "exists" tests. Adds the ":type", ":subtype", ":contenttype", and ":param" options when ":mime" is used with the "header" test. redirect-deliverby The "redirect-deliverby" extension extends the redirect action to allow specification of the BY ESMTP parameter associated with the Deliver-By SMTP extension defined in . redirect-dsn The "redirect-dsn" extension extends the redirect action to allow specification of the NOTIFY and RET ESMTP parameters associated with the DSN SMTP extension defined in . regex reject adds the "reject" action for refusing delivery of a message. The exact reason for refusal is conveyed back to the client. relational Extends existing conditional tests in Sieve language to allow relational operators replace adds the "replace" action for replacing a MIME body part of a message. servermetadata adds tests for checking for server metadata item existence and for retrieving of a server metadata value. spamtest Provides a test to check for varying likelihood of an email message being spam. spamtestplus Provides a test to check for varying likelihood of an email message being spam, possibly using a percentage range. subaddress adds the ':user' and ':detail' address parts for use with the address and envelope tests vacation adds an action for generating an auto-reply saying that the original message will not be read or answered immediately vacation-seconds adds the ":seconds" parameter to the Sieve Vacation extension. Implementations that support this MUST also support "vacation". variables Adds support for variables to the Sieve filtering language. virustest Provides a test to check for varying likelihood of there being malicious content in an email message. vnd.dovecot.* (anything starting with "vnd.dovecot.") Extends the Sieve language with vendor-defined functionality specific to the Dovecot Secure IMAP server (http://www.dovecot.org). Not applicable Specification Required addrbook , section 2.6 Jutta Degener Sendmail, Inc. 6425 Christie Ave, 4th Floor Emeryville, CA 94608 mailto:jutta&sendmail.com Kenneth Murchison Sieve discussion list mailto:sieve&ietf.org Stephan Bosch mailto:stephan&rename-it.nl Timo Sirainen mailto:tss&iki.fi