12 March 2006 05:30
Internet Draft: WITHIN Search extension to the IMAP Protocol - draft-ietf-lemonade-search-within-00 - S. H. Maes , R. Cromwell - Eds. - February 2006 - Expires: August 2006
"WITHIN is an extension to [RFC3501] SEARCH which returns messages whose internal date is on or within a specified interval and differs from SINCE in that an interval in seconds is specified instead of a date".
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