update

internal/accounts/provider_gomail.go

@@ -80,6 +80,21 @@ func (p *GoMailProvider) ListMessages(_ context.Context, folderID string, opts L
 
 	var headers []MessageHeader
 	for _, e := range page {
+		// Fast path: decrypt the small cached header blob instead of the
+		// full message body. Falls through to a full read for messages
+		// delivered before the header cache existed (header_enc is NULL)
+		// or if the cached blob fails to decrypt/parse for any reason.
+		if len(e.HeaderEnc) > 0 {
+			if hdr, err := p.store.DecryptHeaderCache(e.ID, e.HeaderEnc); err == nil {
+				h := MessageHeader{ID: strconv.Itoa(e.UID), FolderID: folderID, SizeBytes: e.SizeBytes,
+					From: hdr.From, To: hdr.To, Subject: hdr.Subject, Date: hdr.Date}
+				if e.Flags != "" {
+					h.Flags = strings.Fields(e.Flags)
+				}
+				headers = append(headers, h)
+				continue
+			}
+		}
 		raw, err := p.store.Read(e.EMLPath)
 		if err != nil {
 			continue