{
"name": "message-id-quoted-local-normalization",
"description": "Quoted and unquoted forms of the same Message-ID match.",
"spec": {
"source": "RFC 5256",
"url": "https://www.rfc-editor.org/rfc/rfc5256",
"behavior": "Message IDs are normalized so quoted and unquoted forms do not false-mismatch"
},
"input": [
{
"id": "quoted-root",
"message_id": "<\"01KF8JCEOCBS0045PS\"@xxx.yyy.com>",
"in_reply_to": null,
"references": [],
"subject": "Quoted",
"date": "2026-05-15T09:00:00Z"
},
{
"id": "unquoted-reply",
"message_id": "<quoted-reply@example>",
"in_reply_to": "<01KF8JCEOCBS0045PS@xxx.yyy.com>",
"references": [],
"subject": "Re: Quoted",
"date": "2026-05-15T09:05:00Z"
}
],
"expected": {
"threads": [
{
"root": "quoted-root",
"messages": [
"quoted-root",
"unquoted-reply"
]
}
]
}
}