{
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  "docId": "RFC4551",
  "document": {
    "abstract": "Often, multiple IMAP (RFC 3501) clients need to coordinate changes to a common IMAP mailbox. Examples include different clients working on behalf of the same user, and multiple users accessing shared mailboxes. These clients need a mechanism to synchronize state changes for messages within the mailbox. They must be able to guarantee that only one client can change message state (e.g., message flags) at any time. An example of such an application is use of an IMAP mailbox as a message queue with multiple dequeueing clients. The Conditional Store facility provides a protected update mechanism for message state information that can detect and resolve conflicts between multiple writing mail clients. The Conditional Store facility also allows a client to quickly resynchronize mailbox flag changes. This document defines an extension to IMAP (RFC 3501). [STANDARDS-TRACK]",
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      "sourceUrl": "https://www.rfc-editor.org/info/rfc4551/",
      "updated": "2026-10-13T22:23:46.428Z",
      "version": "extractDocs.js@commit:fd871efde64d"
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    "authors": [
      {
        "name": "Alexey Melnikov"
      },
      {
        "name": "Steve Hole"
      }
    ],
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      "confidence": "high",
      "note": "Parsed from Datatracker doc page article:author (profile full names)",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4551/",
      "updated": "2026-10-13T22:23:46.428Z",
      "version": "extractDocs.js@commit:fd871efde64d"
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    "docId": "RFC4551",
    "docId$meta": {
      "confidence": "high",
      "note": "Derived from RFC number or Datatracker identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4551/",
      "updated": "2026-10-13T22:23:46.428Z",
      "version": "extractDocs.js@commit:fd871efde64d"
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    "docLabel": "IETF RFC 4551",
    "docLabel$meta": {
      "confidence": "high",
      "note": "Constructed from provider and document identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4551/",
      "updated": "2026-10-13T22:23:46.428Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
    "docNumber": "4551",
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      "confidence": "high",
      "note": "Parsed from RFC info page report metadata",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4551/",
      "updated": "2026-10-13T22:23:46.428Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
    "docTitle": "IMAP Extension for Conditional STORE Operation or Quick Flag Changes Resynchronization",
    "docTitle$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4551/",
      "updated": "2026-10-13T22:23:46.428Z",
      "version": "extractDocs.js@commit:fd871efde64d"
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    "docType": "Standard",
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      "confidence": "high",
      "note": "Mapped from Datatracker std_level or RFC status text",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4551/",
      "updated": "2026-10-13T22:23:46.428Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
    "doi": "10.17487/RFC4551",
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      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4551/",
      "updated": "2026-10-13T22:23:46.428Z",
      "version": "extractDocs.js@commit:fd871efde64d"
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    "href": "https://doi.org/10.17487/RFC4551",
    "href$meta": {
      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4551/",
      "updated": "2026-10-13T22:23:46.428Z",
      "version": "extractDocs.js@commit:fd871efde64d"
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    "keywords": [
      "IMAP"
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    "keywords$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML keywords",
      "originalValue": [
        "Internet Mail Access Protocol"
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      "overridden": true,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4551/",
      "updated": "2026-10-14T15:55:26.894Z",
      "version": "extractDocs.js@commit:ca62cd19765f"
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    "pages": "25",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4551/",
      "updated": "2026-10-13T22:23:46.428Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
    "publicationDate": "2006-06-01",
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      "confidence": "high",
      "note": "Parsed from RFC index XML date",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4551/",
      "updated": "2026-10-13T22:23:46.428Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
    "publisher": "IETF",
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      "confidence": "high",
      "note": "Static: provider",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4551/",
      "updated": "2026-10-13T22:23:46.428Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
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      "bibliographic": [
        "RFC2244",
        "RFC4314",
        "RFC1305",
        "RFC2180",
        "orphan/RFC4551/h:f266031e"
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      "bibliographic$meta": {
        "confidence": "medium",
        "flag": "MIXED_REF_LAYOUT_RISK anchored=9 proseBlocks=11 skippedAnchorBlocks=9",
        "note": "Parsed from RFC HTML references/informative sections",
        "originalValue": [],
        "reviewRequired": true,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4551/",
        "updated": "2026-10-13T22:23:46.428Z",
        "version": "extractDocs.js@commit:fd871efde64d"
      },
      "normative": [
        "RFC2119",
        "RFC4234",
        "RFC3501",
        "RFC4466"
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      "normative$meta": {
        "confidence": "high",
        "note": "Parsed from RFC HTML normative references sections",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4551/",
        "updated": "2026-10-13T22:23:46.428Z",
        "version": "extractDocs.js@commit:fd871efde64d"
      }
    },
    "resolvedHref": "https://www.rfc-editor.org/info/rfc4551/",
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      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4551/",
      "updated": "2026-10-13T22:23:46.428Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
    "status": {
      "active": false,
      "active$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4551/",
        "updated": "2026-10-13T22:23:46.428Z",
        "version": "extractDocs.js@commit:fd871efde64d"
      },
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        "confidence": "high",
        "note": "Parsed from RFC index XML",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4551/",
        "updated": "2026-10-13T22:23:46.428Z",
        "version": "extractDocs.js@commit:fd871efde64d"
      },
      "errataExist": true,
      "errataExist$meta": {
        "confidence": "high",
        "note": "Derived from presence of errata links on RFC/Datatracker pages",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4551/",
        "updated": "2026-10-13T22:23:46.428Z",
        "version": "extractDocs.js@commit:fd871efde64d"
      },
      "errataUrl": [
        "https://www.rfc-editor.org/errata/rfc4551",
        "https://www.rfc-editor.org/errata_search.php?rfc=4551",
        "https://www.rfc-editor.org/rfc/inline-errata/rfc4551.html"
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      "errataUrl$meta": {
        "confidence": "high",
        "note": "Parsed from errata links on RFC/Datatracker pages",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4551/",
        "updated": "2026-10-13T22:23:46.428Z",
        "version": "extractDocs.js@commit:fd871efde64d"
      },
      "latestVersion": false,
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        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4551/",
        "updated": "2026-10-13T22:23:46.428Z",
        "version": "extractDocs.js@commit:fd871efde64d"
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      "statusNote": "Proposed Standard",
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        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4551/",
        "updated": "2026-10-13T22:23:46.428Z",
        "version": "extractDocs.js@commit:fd871efde64d"
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      "superseded": true,
      "superseded$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4551/",
        "updated": "2026-10-13T22:23:46.428Z",
        "version": "extractDocs.js@commit:fd871efde64d"
      },
      "supersededBy": [
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      "supersededBy$meta": {
        "confidence": "high",
        "note": "Parsed from RFC index XML",
        "originalValue": [],
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4551/",
        "updated": "2026-10-13T22:23:46.428Z",
        "version": "extractDocs.js@commit:fd871efde64d"
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