feat: detect legacy tantivy data layout and abort startup with migration hint

crates/core/src/dashboard/mod.rs

@@ -46,6 +46,7 @@ use crate::{
 pub struct DashboardStats {
     pub account_count: usize,                            // Number of accounts
     pub email_count: u64,                                // Total number of emails
+    pub attachment_count: u64,                           // Total number of attachments
     pub total_size_bytes: u64,                           // Total size of all emails (in bytes)
     pub storage_usage_bytes: u64,                        // Actual storage used (in bytes)
     pub index_usage_bytes: u64,                          // Index storage size (in bytes)
@@ -89,7 +90,7 @@ impl DashboardStats {
         };
 
         stat.email_count = ENVELOPE_MANAGER.total_emails(&authorized_ids)?;
-
+        stat.attachment_count = ATTACHMENT_MANAGER.total_attachments(&authorized_ids)?;
         if has_all_accounts {
             stat.storage_usage_bytes = get_total_size(&DATA_DIR_MANAGER.storage_dir)
                 .map_err(|e| raise_error!(format!("{:#?}", e), ErrorCode::InternalError))?;

crates/core/src/lib.rs

@@ -13,6 +13,7 @@ pub mod import;
 pub mod logger;
 pub mod mailbox;
 pub mod message;
+pub mod migrate;
 pub mod oauth2;
 pub mod settings;
 pub mod store;

crates/core/src/migrate/mod.rs

@@ -0,0 +1,62 @@
+use std::path::PathBuf;
+
+use crate::settings::cli::SETTINGS;
+
+pub fn is_tantivy_index_dir(dir: &PathBuf) -> std::io::Result<bool> {
+    if !dir.exists() || !dir.is_dir() {
+        return Ok(false);
+    }
+
+    let tantivy_extensions = [".store", ".term", ".idx", ".fieldnorm", ".pos"];
+    let mut match_count = 0;
+    let mut has_meta_json = false;
+
+    for entry in std::fs::read_dir(dir)? {
+        let entry = entry?;
+        let file_name = entry.file_name();
+        let name = file_name.to_string_lossy();
+
+        if name == "meta.json" {
+            has_meta_json = true;
+            continue;
+        }
+
+        if tantivy_extensions.iter().any(|ext| name.ends_with(ext)) {
+            match_count += 1;
+        }
+    }
+
+    Ok(has_meta_json && match_count >= 3)
+}
+
+pub fn is_legacy_data_layout() -> std::io::Result<bool> {
+    let root_dir = PathBuf::from(&SETTINGS.bichon_root_dir);
+    let envelope_dir = if let Some(ref index_dir) = SETTINGS.bichon_index_dir {
+        PathBuf::from(index_dir)
+    } else {
+        root_dir.join("envelope")
+    };
+
+    let eml_dir = if let Some(ref data_dir) = SETTINGS.bichon_data_dir {
+        PathBuf::from(data_dir)
+    } else {
+        root_dir.join("eml")
+    };
+
+    let envelope_result = is_tantivy_index_dir(&envelope_dir)?;
+    let eml_result = is_tantivy_index_dir(&eml_dir)?;
+    Ok(envelope_result || eml_result)
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_real_tantivy_dir() {
+        let path = PathBuf::from(r"D:\test-data\envelope");
+        let result = is_tantivy_index_dir(&path).unwrap();
+        println!("is tantivy index dir: {}", result);
+        assert!(result);
+    }
+}

crates/core/src/store/tantivy/attachment.rs

@@ -266,6 +266,30 @@ impl IndexManager {
         Box::new(boolean_query)
     }
 
+    pub fn total_attachments(&self, accounts: &Option<HashSet<u64>>) -> BichonResult<u64> {
+        let searcher = self.create_searcher()?;
+
+        match accounts {
+            Some(ref ids) if !ids.is_empty() => {
+                let mut subqueries = Vec::new();
+                for &id in ids {
+                    let term = Term::from_field_u64(SchemaTools::email_fields().f_account_id, id);
+                    subqueries.push((
+                        Occur::Should,
+                        Box::new(TermQuery::new(term, IndexRecordOption::Basic)) as Box<dyn Query>,
+                    ));
+                }
+                let query = Box::new(BooleanQuery::new(subqueries)) as Box<dyn Query>;
+                let count = searcher
+                    .search(&query, &Count)
+                    .map_err(|e| raise_error!(format!("{:#?}", e), ErrorCode::InternalError))?;
+                Ok(count as u64)
+            }
+            Some(_) => Ok(0),
+            None => Ok(searcher.num_docs()),
+        }
+    }
+
     fn filter_query(
         &self,
         accounts: Option<HashSet<u64>>,
@@ -358,7 +382,7 @@ impl IndexManager {
         if let Some(ref name) = filter.attachment_name {
             let query_parser =
                 QueryParser::for_index(&self.index, vec![f.f_name_text, f.f_name_exact]);
-            
+
             let q = query_parser
                 .parse_query(name)
                 .map_err(|e| raise_error!(format!("{:#?}", e), ErrorCode::InvalidParameter))?;

crates/server/src/main.rs

@@ -19,20 +19,20 @@
 use std::sync::LazyLock;
 
 use bichon_core::{
-    bichon_version, raise_error,
+    bichon_version,
-    {
+    cache::imap::task::SYNC_TASKS,
-        cache::imap::task::SYNC_TASKS,
+    common::rustls::BichonTls,
-        common::rustls::BichonTls,
+    context::{executors::BichonContext, Initialize},
-        context::{executors::BichonContext, Initialize},
+    error::{code::ErrorCode, BichonResult},
-        error::{code::ErrorCode, BichonResult},
+    logger,
-        logger,
+    migrate::is_legacy_data_layout,
-        settings::cli::SETTINGS,
+    raise_error,
-        store::{
+    settings::cli::SETTINGS,
-            storage::BLOB_MANAGER,
+    store::{
-            tantivy::{attachment::ATTACHMENT_MANAGER, envelope::ENVELOPE_MANAGER},
+        storage::BLOB_MANAGER,
-        },
+        tantivy::{attachment::ATTACHMENT_MANAGER, envelope::ENVELOPE_MANAGER},
-        tasks::PeriodicTasks,
     },
+    tasks::PeriodicTasks,
 };
 use bichon_smtp::server::{start_smtp_server, SmtpServer};
 use mimalloc::MiMalloc;
@@ -69,6 +69,24 @@ async fn main() -> BichonResult<()> {
     info!("Git:      [{}]", env!("GIT_HASH"));
     info!("GitHub:   https://github.com/rustmailer/bichon");
 
+    match is_legacy_data_layout() {
+        Ok(true) => {
+            error!("Incompatible data format detected.");
+            error!("Your data was created by an older version of Bichon and must be migrated before use.");
+            error!("Please run: bichon-migrate");
+            error!("Documentation: https://github.com/rustmailer/bichon/wiki/migration");
+            return Err(raise_error!(
+                "Legacy data layout detected".into(),
+                ErrorCode::InternalError
+            ));
+        }
+        Err(e) => {
+            error!("Failed to check data layout: {:#?}", e);
+            return Err(raise_error!(format!("{:#?}", e), ErrorCode::InternalError));
+        }
+        Ok(false) => {}
+    }
+
     if let Err(error) = initialize().await {
         eprintln!("{:?}", error);
         return Err(error);

web/src/api/system/api.ts

@@ -44,6 +44,7 @@ export const get_notifications = async () => {
 export interface DashboardStats {
     account_count: number;                 // Number of accounts
     email_count: number;                   // Total number of emails
+    attachment_count: number;                   // Total number of attachments
     total_size_bytes: number;              // Total size of all emails (in bytes)
     storage_usage_bytes: number;           // Actual storage used (in bytes)
     index_usage_bytes: number;             // Index storage size (in bytes)
@@ -60,6 +61,7 @@ export interface DashboardStats {
 export const INITIAL_DASHBOARD_STATS: DashboardStats = {
     account_count: 0,
     email_count: 0,
+    attachment_count: 0,
     total_size_bytes: 0,
     storage_usage_bytes: 0,
     index_usage_bytes: 0,

web/src/features/accounts/index.tsx

@@ -28,7 +28,7 @@ import { AccountTable } from './components/table'
 import AccountProvider, {
   type AccountDialogType,
 } from './context'
-import { MoreVertical, Plus } from 'lucide-react'
+import { Plus } from 'lucide-react'
 import Logo from '@/assets/logo.svg'
 import { AccountDetailDrawer } from './components/account-detail'
 import { AccountModel, list_accounts } from '@/api/account/api'
@@ -39,7 +39,6 @@ import { RunningStateDialog } from './components/running-state-dialog'
 import { FixedHeader } from '@/components/layout/fixed-header'
 import { DownloadFoldersDialog } from './components/download-folders'
 import { NoSyncAccountDialog } from './components/nosync-dialog'
-import { DropdownMenu, DropdownMenuContent, DropdownMenuItem, DropdownMenuTrigger } from '@/components/ui/dropdown-menu'
 import { useTranslation } from 'react-i18next'
 import { AccountAccessAssignmentDialog } from './components/access-assignment-dialog'
 import { useCurrentUser } from '@/hooks/use-current-user'

web/src/features/dashboard/index.tsx

@@ -219,21 +219,15 @@ export default function MailArchiveDashboard() {
                 <p className="text-xs text-muted-foreground">{t('dashboard.syncedLocally')}</p>
               </CardContent>
             </Card>
+
             <Card className="md:col-span-2 lg:col-span-2">
               <CardHeader className="flex flex-row items-center justify-between space-y-0 pb-2">
-                <CardTitle className="text-xs font-bold uppercase tracking-wider">{t('dashboard.systemVersion')}</CardTitle>
+                <CardTitle className="text-xs font-bold uppercase tracking-wider">{t('dashboard.totalAttachments')}</CardTitle>
+                <Mail className="h-4 w-4 text-muted-foreground" />
               </CardHeader>
               <CardContent>
-                <div className='text-xl font-bold truncate text-primary tracking-tighter'>
+                <div className="text-xl font-bold">{formatNumber(stats1.attachment_count)}</div>
-                  {stats1.system_version ? (
+                <p className="text-xs text-muted-foreground">{t('dashboard.regularAttachments')}</p>
-                    <a href={`https://github.com/rustmailer/bichon/releases/tag/${stats1.system_version}`} target="_blank" rel="noopener noreferrer" className="hover:underline">
-                      {stats1.system_version}
-                    </a>
-                  ) : 'N/A'}
-                </div>
-                <div className="flex items-center gap-1.5 mt-1">
-                  <GithubIcon className="h-5 w-5 text-muted-foreground" />
-                </div>
               </CardContent>
             </Card>
             <Card className="md:col-span-6 lg:col-span-6">
@@ -558,7 +552,30 @@ export default function MailArchiveDashboard() {
       </Main>
 
       <div className="mt-auto p-6 text-center text-xs text-muted-foreground border-t">
-        © 2025-2026 <a href="https://rustmailer.com" target="_blank" rel="noopener noreferrer" className="hover:underline">rustmailer.com</a> - Bichon Email Archiving Project
+        <p>
+          © 2025-2026{" "}
+          <a
+            href="https://github.com/rustmailer/bichon"
+            target="_blank"
+            rel="noopener noreferrer"
+            className="hover:underline font-medium"
+          >
+            Bichon Email Archiving Project
+          </a>
+          {stats1.system_version && (
+            <>
+              <span className="mx-2 opacity-50">•</span>
+              <a
+                href={`https://github.com/rustmailer/bichon/releases/tag/${stats1.system_version}`}
+                target="_blank"
+                rel="noopener noreferrer"
+                className="hover:underline font-mono"
+              >
+                v{stats1.system_version}
+              </a>
+            </>
+          )}
+        </p>
       </div>
     </>
   );

web/src/locales/ar.json

@@ -484,6 +484,7 @@
     "noRecentActivity": "لا يوجد نشاط حديث",
     "noSendersData": "لا توجد بيانات للمرسلين",
     "noSubject": "(لا يوجد موضوع)",
+    "regularAttachments": "المرفقات العادية",
     "saved": "الموفرة",
     "sender": "المرسل",
     "size": "الحجم",
@@ -497,6 +498,7 @@
     "top10LargestEmails": "أكبر 10 رسائل بريد إلكتروني",
     "top10Senders": "أفضل 10 مرسلين",
     "topLists": "القوائم الأعلى",
+    "totalAttachments": "إجمالي المرفقات",
     "totalEmailSize": "الحجم الإجمالي لرسائل البريد الإلكتروني",
     "totalEmails": "إجمالي رسائل البريد الإلكتروني",
     "withAttachments": "مع مرفقات"

web/src/locales/da.json

@@ -484,6 +484,7 @@
     "noRecentActivity": "Ingen nylig aktivitet",
     "noSendersData": "Ingen afsenderdata",
     "noSubject": "(Intet emne)",
+    "regularAttachments": "Almindelige vedhæftede filer",
     "saved": "Sparet",
     "sender": "Afender",
     "size": "Størrelse",
@@ -497,6 +498,7 @@
     "top10LargestEmails": "Top 10 Største E-mails",
     "top10Senders": "Top 10 Afsendere",
     "topLists": "Toplister",
+    "totalAttachments": "Samlet antal vedhæftede filer",
     "totalEmailSize": "Samlet e-mailstørrelse",
     "totalEmails": "Samlet antal e-mails",
     "withAttachments": "Med vedhæftninger"

web/src/locales/de.json

@@ -484,6 +484,7 @@
     "noRecentActivity": "Keine kürzliche Aktivität",
     "noSendersData": "Keine Absenderdaten",
     "noSubject": "(Kein Betreff)",
+    "regularAttachments": "Reguläre Anhänge",
     "saved": "Eingespart",
     "sender": "Absender",
     "size": "Größe",
@@ -497,6 +498,7 @@
     "top10LargestEmails": "Top 10 größte E-Mails",
     "top10Senders": "Top 10 Absender",
     "topLists": "Top-Listen",
+    "totalAttachments": "Anhänge insgesamt",
     "totalEmailSize": "Gesamtgröße der E-Mails",
     "totalEmails": "Gesamt-E-Mails",
     "withAttachments": "Mit Anhängen"

web/src/locales/en.json

@@ -484,6 +484,7 @@
     "noRecentActivity": "No recent activity",
     "noSendersData": "No senders data",
     "noSubject": "(No Subject)",
+    "regularAttachments": "Regular attachments",
     "saved": "Saved",
     "sender": "Sender",
     "size": "Size",
@@ -497,6 +498,7 @@
     "top10LargestEmails": "Top 10 Largest Emails",
     "top10Senders": "Top 10 Senders",
     "topLists": "Top Lists",
+    "totalAttachments": "Total attachments",
     "totalEmailSize": "Total Email Size",
     "totalEmails": "Total Emails",
     "withAttachments": "With Attachments"

web/src/locales/es.json

@@ -484,6 +484,7 @@
     "noRecentActivity": "Sin actividad reciente",
     "noSendersData": "Sin datos de remitentes",
     "noSubject": "(Sin asunto)",
+    "regularAttachments": "Adjuntos regulares",
     "saved": "Ahorrado",
     "sender": "Remitente",
     "size": "Tamaño",
@@ -497,6 +498,7 @@
     "top10LargestEmails": "Los 10 correos más grandes",
     "top10Senders": "Los 10 principales remitentes",
     "topLists": "Listas principales",
+    "totalAttachments": "Total de adjuntos",
     "totalEmailSize": "Tamaño total de correos",
     "totalEmails": "Total de correos",
     "withAttachments": "Con adjuntos"

web/src/locales/fi.json

@@ -484,6 +484,7 @@
     "noRecentActivity": "Ei viimeaikaisia tapahtumia",
     "noSendersData": "Ei lähettäjätietoja",
     "noSubject": "(Ei aihetta)",
+    "regularAttachments": "Tavalliset liitteet",
     "saved": "Säästetty",
     "sender": "Lähettäjä",
     "size": "Koko",
@@ -497,6 +498,7 @@
     "top10LargestEmails": "10 suurinta sähköpostia",
     "top10Senders": "10 parasta lähettäjää",
     "topLists": "Parhaat listat",
+    "totalAttachments": "Liitteitä yhteensä",
     "totalEmailSize": "Sähköpostien kokonaiskoko",
     "totalEmails": "Sähköpostien kokonaismäärä",
     "withAttachments": "Liitteillä"

web/src/locales/fr.json

@@ -484,6 +484,7 @@
     "noRecentActivity": "Aucune activité récente",
     "noSendersData": "Aucune donnée d'expéditeurs",
     "noSubject": "(Aucun Objet)",
+    "regularAttachments": "Pièces jointes standard",
     "saved": "Économisé",
     "sender": "Expéditeur",
     "size": "Taille",
@@ -497,6 +498,7 @@
     "top10LargestEmails": "Top 10 des E-mails les Plus Volumineux",
     "top10Senders": "Top 10 des Expéditeurs",
     "topLists": "Top Listes",
+    "totalAttachments": "Total des pièces jointes",
     "totalEmailSize": "Taille totale des e-mails",
     "totalEmails": "Total des e-mails",
     "withAttachments": "Avec Pièces Jointes"

web/src/locales/it.json

@@ -484,6 +484,7 @@
     "noRecentActivity": "Nessuna attività recente",
     "noSendersData": "Nessun dato sui mittenti",
     "noSubject": "(Nessun Oggetto)",
+    "regularAttachments": "Allegati regolari",
     "saved": "Risparmiato",
     "sender": "Mittente",
     "size": "Dimensione",
@@ -497,6 +498,7 @@
     "top10LargestEmails": "Le 10 Email più Grandi",
     "top10Senders": "I 10 Mittenti Principali",
     "topLists": "Liste Top",
+    "totalAttachments": "Allegati totali",
     "totalEmailSize": "Dimensione totale email",
     "totalEmails": "Email totali",
     "withAttachments": "Con Allegati"

web/src/locales/jp.json

@@ -484,6 +484,7 @@
     "noRecentActivity": "最近のアクティビティなし",
     "noSendersData": "送信者データなし",
     "noSubject": "(件名なし)",
+    "regularAttachments": "通常の添付ファイル",
     "saved": "節約済み",
     "sender": "送信者",
     "size": "サイズ",
@@ -497,6 +498,7 @@
     "top10LargestEmails": "容量の大きいメールトップ10",
     "top10Senders": "送信者トップ10",
     "topLists": "トップリスト",
+    "totalAttachments": "添付ファイル総数",
     "totalEmailSize": "メール総容量",
     "totalEmails": "合計メール数",
     "withAttachments": "添付ファイルあり"

web/src/locales/ko.json

@@ -484,6 +484,7 @@
     "noRecentActivity": "최근 활동 없음",
     "noSendersData": "발신자 데이터 없음",
     "noSubject": "(제목 없음)",
+    "regularAttachments": "일반 첨부 파일",
     "saved": "절약됨",
     "sender": "발신자",
     "size": "크기",
@@ -497,6 +498,7 @@
     "top10LargestEmails": "상위 10개 최대 크기 이메일",
     "top10Senders": "상위 10명 발신자",
     "topLists": "상위 목록",
+    "totalAttachments": "총 첨부 파일",
     "totalEmailSize": "총 이메일 크기",
     "totalEmails": "총 이메일 수",
     "withAttachments": "첨부 파일 포함"

web/src/locales/nl.json

@@ -484,6 +484,7 @@
     "noRecentActivity": "Geen recente activiteit",
     "noSendersData": "Geen afzendersgegevens",
     "noSubject": "(Geen Onderwerp)",
+    "regularAttachments": "Reguliere bijlagen",
     "saved": "Bespaard",
     "sender": "Afzender",
     "size": "Grootte",
@@ -497,6 +498,7 @@
     "top10LargestEmails": "Top 10 Grootste e-mails",
     "top10Senders": "Top 10 Afzenders",
     "topLists": "Toplijsten",
+    "totalAttachments": "Totaal aantal bijlagen",
     "totalEmailSize": "Totale e-mailgrootte",
     "totalEmails": "Totaal aantal e-mails",
     "withAttachments": "Met Bijlagen"

web/src/locales/no.json

@@ -484,6 +484,7 @@
     "noRecentActivity": "Ingen nylig aktivitet",
     "noSendersData": "Ingen avsenderdata",
     "noSubject": "(Uten emne)",
+    "regularAttachments": "Vanlige vedlegg",
     "saved": "Spart",
     "sender": "Avsender",
     "size": "Størrelse",
@@ -497,6 +498,7 @@
     "top10LargestEmails": "Topp 10 største e-poster",
     "top10Senders": "Topp 10 avsendere",
     "topLists": "Topplister",
+    "totalAttachments": "Totalt antall vedlegg",
     "totalEmailSize": "Total e-poststørrelse",
     "totalEmails": "Totalt antall e-poster",
     "withAttachments": "Med vedlegg"

web/src/locales/pl.json

@@ -484,6 +484,7 @@
     "noRecentActivity": "Brak aktywności",
     "noSendersData": "Brak danych od Nadawcy",
     "noSubject": "(brak tematu)",
+    "regularAttachments": "Zwykłe załączniki",
     "saved": "Zaoszczędzone",
     "sender": "Nadawca",
     "size": "Rozmiar",
@@ -497,6 +498,7 @@
     "top10LargestEmails": "Top 10 największych wiadomości",
     "top10Senders": "Top 10 Nadawców",
     "topLists": "Lista TOP",
+    "totalAttachments": "Łączna liczba załączników",
     "totalEmailSize": "Wielkość wszystkich wiadomości",
     "totalEmails": "Wszystkie wiadomości",
     "withAttachments": "Z załącznikami"

web/src/locales/pt.json

@@ -484,6 +484,7 @@
     "noRecentActivity": "Nenhuma Atividade Recente",
     "noSendersData": "Sem Dados de Remetentes",
     "noSubject": "(Sem Assunto)",
+    "regularAttachments": "Anexos regulares",
     "saved": "Economizado",
     "sender": "Remetente",
     "size": "Tamanho",
@@ -497,6 +498,7 @@
     "top10LargestEmails": "Top 10 Maiores Emails",
     "top10Senders": "Top 10 Remetentes",
     "topLists": "Principais Listas",
+    "totalAttachments": "Total de anexos",
     "totalEmailSize": "Tamanho Total do Email",
     "totalEmails": "Total de Emails",
     "withAttachments": "Com Anexos"

web/src/locales/ru.json

@@ -484,6 +484,7 @@
     "noRecentActivity": "Нет недавней активности",
     "noSendersData": "Нет данных об отправителях",
     "noSubject": "(Без темы)",
+    "regularAttachments": "Обычные вложения",
     "saved": "Сэкономлено",
     "sender": "Отправитель",
     "size": "Размер",
@@ -497,6 +498,7 @@
     "top10LargestEmails": "Топ 10 самых больших писем",
     "top10Senders": "Топ 10 отправителей",
     "topLists": "Топ списки",
+    "totalAttachments": "Всего вложений",
     "totalEmailSize": "Общий размер писем",
     "totalEmails": "Всего писем",
     "withAttachments": "С вложениями"

web/src/locales/sv.json

@@ -484,6 +484,7 @@
     "noRecentActivity": "Ingen nylig aktivitet",
     "noSendersData": "Inga avsändardata",
     "noSubject": "(Inget ämne)",
+    "regularAttachments": "Vanliga bilagor",
     "saved": "Sparat",
     "sender": "Avsändare",
     "size": "Storlek",
@@ -497,6 +498,7 @@
     "top10LargestEmails": "Topp 10 största e-postmeddelanden",
     "top10Senders": "Topp 10 avsändare",
     "topLists": "Topplistor",
+    "totalAttachments": "Totalt antal bilagor",
     "totalEmailSize": "Total e-poststorlek",
     "totalEmails": "Totalt antal e-postmeddelanden",
     "withAttachments": "Med bilagor"

web/src/locales/zh-tw.json

@@ -484,6 +484,7 @@
     "noRecentActivity": "無近期活動",
     "noSendersData": "無寄件人資料",
     "noSubject": "(無主旨)",
+    "regularAttachments": "普通附件",
     "saved": "節省空間",
     "sender": "寄件人",
     "size": "大小",
@@ -497,6 +498,7 @@
     "top10LargestEmails": "前 10 封最大郵件",
     "top10Senders": "前 10 名寄件人",
     "topLists": "排行榜",
+    "totalAttachments": "附件總數",
     "totalEmailSize": "郵件總容量",
     "totalEmails": "郵件總數",
     "withAttachments": "包含附件"

web/src/locales/zh.json

@@ -484,6 +484,7 @@
     "noRecentActivity": "无最近活动",
     "noSendersData": "无发件人数据",
     "noSubject": "（无主题）",
+    "regularAttachments": "普通附件",
     "saved": "节省空间",
     "sender": "发件人",
     "size": "大小",
@@ -497,6 +498,7 @@
     "top10LargestEmails": "前10大邮件",
     "top10Senders": "前10名发件人",
     "topLists": "排行榜",
+    "totalAttachments": "附件总数",
     "totalEmailSize": "邮件总大小",
     "totalEmails": "邮件总数",
     "withAttachments": "包含附件"