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Status:

PROPOSED STANDARD

Obsoletes:

RFC 3028

Updates:

RFC 5228

Author:

A. Stone, Ed.

Stream:

IETF

Source:

sieve (app)

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DOI:  https://doi.org/10.17487/RFC5429

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Abstract

This memo updates the definition of the Sieve mail filtering language"reject" extension, originally defined in RFC 3028.

A "Joe-job" is a spam run forged to appear as though it came from aninnocent party, who is then generally flooded by automated bounces,Message Disposition Notifications (MDNs), and personal messages withcomplaints. The original Sieve "reject" action defined in RFC 3028required use of MDNs for rejecting messages, thus contributing to theflood of Joe-job spam to victims of Joe-jobs.

This memo updates the definition of the "reject" action to allowmessages to be refused during the SMTP transaction, and defines the"ereject" action to require messages to be refused during the SMTPtransaction, if possible.

The "ereject" action is intended to replace the "reject" actionwherever possible. The "ereject" action is similar to "reject", butwill always favor protocol-level message rejection. [STANDARDS-TRACK]

For the definition ofStatus,seeRFC 2026.

For the definition ofStream, seeRFC 8729.