From 733612bcfb052a089a4f5e0dd4c220001f8fb09a Mon Sep 17 00:00:00 2001
From: smail <likb_blue@163.com>
Date: Tue, 6 Oct 2026 05:27:11 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8DIMAP=E5=9B=9E=E5=A4=8D?=
 =?UTF-8?q?=E9=82=AE=E4=BB=B6=E5=85=B3=E8=81=94=E5=A4=B4?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 backend/dto/parsemail/imap.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/backend/dto/parsemail/imap.go b/backend/dto/parsemail/imap.go
index d39868aa..dd1752d8 100644
--- a/backend/dto/parsemail/imap.go
+++ b/backend/dto/parsemail/imap.go
@@ -46,6 +46,8 @@ func (e *Email) BuildIMAPBytes(_ *context.Context) ([]byte, error) {
 	}
 	h.SetMessageID(messageID)
 	h.SetSubject(e.Subject)
+	h.SetMsgIDList("In-Reply-To", ThreadMessageIDs(e.InReplyTo))
+	h.SetMsgIDList("References", ThreadMessageIDs(e.ThreadReferences))
 	sender := e.Sender
 	if sender == nil {
 		sender = e.From