Sieve Email Filtering -- Regular Expression Extension

Document Type Replaced Internet-Draft (individual)
Last updated 2010-02-01 (latest revision 2004-10-27)
Replaced by draft-ietf-sieve-regex
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Intended RFC status Proposed Standard
Expired & archived
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IESG IESG state Replaced by draft-ietf-sieve-regex
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


In some cases, it is desirable to have a string matching mechanism which is more powerful than a simple exact match, a substring match or a glob-style wildcard match. The regular expression matching mechanism defined in this draft should allow users to isolate just about any string or address in a message header or envelope.


Ken Murchison (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)