@misc{rfc3598, series = {Request for Comments}, number = 3598, howpublished = {RFC 3598}, publisher = {RFC Editor}, doi = {10.17487/RFC3598}, url = {https://www.rfc-editor.org/info/rfc3598}, author = {Kenneth Murchison}, title = {{Sieve Email Filtering -- Subaddress Extension}}, pagetotal = 6, year = 2003, month = sep, abstract = {On email systems that allow for "subaddressing" or "detailed addressing" (e.g., "ken+sieve@example.org"), it is sometimes desirable to make comparisons against these sub-parts of addresses. This document defines an extension to the Sieve mail filtering language that allows users to compare against the user and detail parts of an address. {[}STANDARDS-TRACK{]}}, }