diff --git a/app/[locale]/page.tsx b/app/[locale]/page.tsx
index 94e6caa..bf97c58 100644
--- a/app/[locale]/page.tsx
+++ b/app/[locale]/page.tsx
@@ -31,6 +31,7 @@ import { DragDropProvider } from "@/contexts/drag-drop-context";
 export default function Home() {
   const router = useRouter();
   const t = useTranslations();
+  const tCommon = useTranslations('common');
   const [showComposer, setShowComposer] = useState(false);
   const [composerMode, setComposerMode] = useState<'compose' | 'reply' | 'replyAll' | 'forward'>('compose');
   const [initialCheckDone, setInitialCheckDone] = useState(false);
@@ -194,7 +195,7 @@ export default function Home() {
 
   // Update page title based on context
   useEffect(() => {
-    let title = "Webmail";
+    let title = tCommon('app_title');
 
     if (showComposer) {
       // Composing email
@@ -204,11 +205,11 @@ export default function Home() {
         replyAll: t('email_composer.reply_all'),
         forward: t('email_composer.forward'),
       }[composerMode] || t('email_composer.new_message');
-      title = `${modeText} - Webmail`;
+      title = `${modeText} - ${tCommon('app_title')}`;
     } else if (selectedEmail) {
       // Reading email
       const subject = selectedEmail.subject || t('email_viewer.no_subject');
-      title = `${subject} - Webmail`;
+      title = `${subject} - ${tCommon('app_title')}`;
     } else if (selectedMailbox && mailboxes.length > 0) {
       // Mailbox view
       const mailbox = mailboxes.find(mb => mb.id === selectedMailbox);
@@ -216,8 +217,8 @@ export default function Home() {
         const mailboxName = mailbox.name;
         const unreadCount = mailbox.unreadEmails || 0;
         title = unreadCount > 0
-          ? `${mailboxName} (${unreadCount}) - Webmail`
-          : `${mailboxName} - Webmail`;
+          ? `${mailboxName} (${unreadCount}) - ${tCommon('app_title')}`
+          : `${mailboxName} - ${tCommon('app_title')}`;
       }
     }
 
diff --git a/components/email/email-composer.tsx b/components/email/email-composer.tsx
index 6da53ab..0544520 100644
--- a/components/email/email-composer.tsx
+++ b/components/email/email-composer.tsx
@@ -315,19 +315,19 @@ export function EmailComposer({
           {saveStatus === 'saving' && (
             <div className="flex items-center gap-1 text-xs text-muted-foreground">
               <Save className="w-3 h-3 animate-pulse" />
-              <span>Saving...</span>
+              <span>{t('saving')}</span>
             </div>
           )}
           {saveStatus === 'saved' && (
             <div className="flex items-center gap-1 text-xs text-green-600">
               <Check className="w-3 h-3" />
-              <span>Draft saved</span>
+              <span>{t('draft_saved')}</span>
             </div>
           )}
           {saveStatus === 'error' && (
             <div className="flex items-center gap-1 text-xs text-red-600">
               <X className="w-3 h-3" />
-              <span>Failed to save</span>
+              <span>{t('save_failed')}</span>
             </div>
           )}
         </div>
@@ -366,7 +366,7 @@ export function EmailComposer({
             <span className="text-sm text-muted-foreground w-16">{t('to')}:</span>
             <Input
               type="email"
-              placeholder="Recipient email addresses (comma separated)"
+              placeholder={t('to_placeholder')}
               value={to}
               onChange={(e) => setTo(e.target.value)}
               className="flex-1 border-0 focus-visible:ring-0"
@@ -393,10 +393,10 @@ export function EmailComposer({
 
           {showCc && (
             <div className="flex items-center gap-2">
-              <span className="text-sm text-muted-foreground w-16">Cc:</span>
+              <span className="text-sm text-muted-foreground w-16">{t('cc_label')}</span>
               <Input
                 type="email"
-                placeholder="Cc recipients (comma separated)"
+                placeholder={t('cc_placeholder')}
                 value={cc}
                 onChange={(e) => setCc(e.target.value)}
                 className="flex-1 border-0 focus-visible:ring-0"
@@ -406,10 +406,10 @@ export function EmailComposer({
 
           {showBcc && (
             <div className="flex items-center gap-2">
-              <span className="text-sm text-muted-foreground w-16">Bcc:</span>
+              <span className="text-sm text-muted-foreground w-16">{t('bcc_label')}</span>
               <Input
                 type="email"
-                placeholder="Bcc recipients (comma separated)"
+                placeholder={t('bcc_placeholder')}
                 value={bcc}
                 onChange={(e) => setBcc(e.target.value)}
                 className="flex-1 border-0 focus-visible:ring-0"
@@ -418,10 +418,10 @@ export function EmailComposer({
           )}
 
           <div className="flex items-center gap-2">
-            <span className="text-sm text-muted-foreground w-16">Subject:</span>
+            <span className="text-sm text-muted-foreground w-16">{t('subject_label')}</span>
             <Input
               type="text"
-              placeholder="Subject"
+              placeholder={t('subject_placeholder')}
               value={subject}
               onChange={(e) => setSubject(e.target.value)}
               className="flex-1 border-0 focus-visible:ring-0"
@@ -432,7 +432,7 @@ export function EmailComposer({
         <div className="flex-1 px-4 py-3 min-h-0">
           <textarea
             className="w-full h-full resize-none outline-none text-sm bg-transparent text-foreground placeholder:text-muted-foreground"
-            placeholder="Compose email..."
+            placeholder={t('body_placeholder')}
             value={body}
             onChange={(e) => setBody(e.target.value)}
           />
@@ -459,7 +459,7 @@ export function EmailComposer({
                   )}
                   <span className="max-w-[200px] truncate">{att.file.name}</span>
                   <span className="text-xs text-muted-foreground">
-                    ({(att.file.size / 1024).toFixed(1)} KB)
+                    ({(att.file.size / 1024).toFixed(1)} {t('file_size_kb')})
                   </span>
                   <button
                     onClick={() => removeAttachment(index)}
diff --git a/components/email/email-viewer.tsx b/components/email/email-viewer.tsx
index fe82ee8..1168ba8 100644
--- a/components/email/email-viewer.tsx
+++ b/components/email/email-viewer.tsx
@@ -138,6 +138,7 @@ export function EmailViewer({
 }: EmailViewerProps) {
   const t = useTranslations('email_viewer');
   const tNotifications = useTranslations('notifications');
+  const tCommon = useTranslations('common');
   const externalContentPolicy = useSettingsStore((state) => state.externalContentPolicy);
   const addTrustedSender = useSettingsStore((state) => state.addTrustedSender);
   const isSenderTrusted = useSettingsStore((state) => state.isSenderTrusted);
@@ -527,8 +528,8 @@ export function EmailViewer({
           <div className="w-20 h-20 mx-auto mb-6 rounded-full bg-background shadow-lg flex items-center justify-center">
             <Mail className="w-10 h-10 text-muted-foreground" />
           </div>
-          <h3 className="text-xl font-semibold text-foreground mb-2">No conversation selected</h3>
-          <p className="text-muted-foreground">Choose a conversation from the list to read it here</p>
+          <h3 className="text-xl font-semibold text-foreground mb-2">{t('no_conversation_selected')}</h3>
+          <p className="text-muted-foreground">{t('no_conversation_description')}</p>
         </div>
       </div>
     );
@@ -548,7 +549,7 @@ export function EmailViewer({
         <div className="absolute inset-0 bg-background/60 backdrop-blur-[2px] z-50 flex items-center justify-center animate-in fade-in duration-200">
           <div className="bg-background rounded-lg shadow-lg border border-border p-4 flex items-center gap-3">
             <Loader2 className="w-5 h-5 animate-spin text-primary" />
-            <span className="text-sm font-medium text-foreground">Loading email...</span>
+            <span className="text-sm font-medium text-foreground">{t('loading_email')}</span>
           </div>
         </div>
       )}
@@ -607,7 +608,7 @@ export function EmailViewer({
               {isLoading && (
                 <div className="mr-2 flex items-center gap-1.5 text-muted-foreground hidden lg:flex">
                   <Loader2 className="w-4 h-4 animate-spin" />
-                  <span className="text-xs">Loading...</span>
+                  <span className="text-xs">{t('loading')}</span>
                 </div>
               )}
               {/* Primary Reply Button */}
@@ -627,7 +628,7 @@ export function EmailViewer({
                   variant="ghost"
                   size="icon"
                   className="h-8 w-8 hover:bg-muted"
-                  title="More reply options"
+                  title={t('more_reply_options')}
                 >
                   <ChevronDown className="w-4 h-4 text-muted-foreground" />
                 </Button>
@@ -688,7 +689,7 @@ export function EmailViewer({
               <div className="relative group hidden lg:block">
                 <button
                   className="h-8 w-8 rounded hover:bg-muted flex items-center justify-center"
-                  title="Set color"
+                  title={t('set_color')}
                 >
                   <Circle className={cn(
                     "w-4 h-4",
@@ -733,7 +734,7 @@ export function EmailViewer({
                           }
                         }}
                         className="w-6 h-6 rounded-full border border-gray-300 dark:border-gray-600 hover:bg-gray-100 hover:bg-muted flex items-center justify-center"
-                        title="Remove color"
+                        title={t('remove_color')}
                       >
                         <X className="w-3 h-3 text-muted-foreground" />
                       </button>
@@ -748,7 +749,7 @@ export function EmailViewer({
                   variant="ghost"
                   size="icon"
                   className="h-8 w-8 hover:bg-muted"
-                  title="More actions"
+                  title={t('more_actions')}
                 >
                   <MoreVertical className="w-4 h-4 text-muted-foreground" />
                 </Button>
@@ -787,7 +788,7 @@ export function EmailViewer({
             <div className="flex-1 min-w-0">
               <div className="flex items-center gap-2 flex-wrap">
                 <span className="font-semibold text-foreground">
-                  {sender?.name || sender?.email || "Unknown"}
+                  {sender?.name || sender?.email || t('unknown_sender')}
                 </span>
                 {sender?.email && sender?.name && (
                   <span className="text-sm text-muted-foreground">
@@ -807,7 +808,7 @@ export function EmailViewer({
                           onClick={() => setShowFullHeaders(!showFullHeaders)}
                           className="ml-1 text-blue-600 dark:text-blue-400 hover:underline"
                         >
-                          +{email.to.length - 2} more
+                          {t('more_count', { count: email.to.length - 2 })}
                         </button>
                       )}
                     </span>
@@ -833,7 +834,7 @@ export function EmailViewer({
                       <div className="bg-gray-50 dark:bg-gray-800 px-4 py-2 border-b border-gray-200 dark:border-gray-700">
                         <h3 className="text-xs font-semibold text-gray-900 dark:text-gray-100 uppercase tracking-wider flex items-center gap-2">
                           <ShieldCheck className="w-3.5 h-3.5" />
-                          Security & Authentication
+                          {t('security_authentication')}
                         </h3>
                       </div>
                       <div className="bg-background p-4 space-y-3">
@@ -1024,7 +1025,7 @@ export function EmailViewer({
                       <div className="bg-gray-50 dark:bg-gray-800 px-4 py-2 border-b border-gray-200 dark:border-gray-700">
                         <h3 className="text-xs font-semibold text-gray-900 dark:text-gray-100 uppercase tracking-wider flex items-center gap-2">
                           <Network className="w-3.5 h-3.5" />
-                          Technical Details
+                          {t('technical_details')}
                         </h3>
                       </div>
                       <div className="bg-background p-4">
@@ -1034,7 +1035,7 @@ export function EmailViewer({
                             <div className="flex items-start gap-2">
                               <Hash className="w-3.5 h-3.5 text-muted-foreground mt-0.5" />
                               <div className="flex-1 min-w-0">
-                                <span className="font-medium text-muted-foreground">Message-ID:</span>
+                                <span className="font-medium text-muted-foreground">{t('message_id_label')}</span>
                                 <div className="text-foreground break-all font-mono text-xs mt-0.5">
                                   {email.messageId}
                                 </div>
@@ -1048,7 +1049,7 @@ export function EmailViewer({
                             <div className="flex items-start gap-2">
                               <Mail className="w-3.5 h-3.5 text-muted-foreground mt-0.5" />
                               <div className="flex-1">
-                                <span className="font-medium text-muted-foreground">Reply-To:</span>
+                                <span className="font-medium text-muted-foreground">{t('reply_to_label')}</span>
                                 <div className="flex flex-wrap gap-2 mt-1">
                                   {email.replyTo.map((recipient, i) => (
                                     <span key={i} className="inline-flex items-center px-2 py-1 bg-accent/50 border border-accent rounded text-xs">
@@ -1067,16 +1068,20 @@ export function EmailViewer({
                             <div className="flex items-start gap-2">
                               <Clock className="w-3.5 h-3.5 text-muted-foreground mt-0.5" />
                               <div className="flex-1">
-                                <span className="font-medium text-muted-foreground">Delivery time:</span>
+                                <span className="font-medium text-muted-foreground">{t('delivery_time_label')}</span>
                                 <div className="text-foreground">
                                   {(() => {
                                     const diff = Math.abs(new Date(email.receivedAt).getTime() - new Date(email.sentAt).getTime());
                                     const minutes = Math.floor(diff / 60000);
                                     const hours = Math.floor(minutes / 60);
                                     const days = Math.floor(hours / 24);
-                                    if (days > 0) return `${days} day${days > 1 ? 's' : ''} ${hours % 24} hour${hours % 24 !== 1 ? 's' : ''}`;
-                                    if (hours > 0) return `${hours} hour${hours > 1 ? 's' : ''} ${minutes % 60} minute${minutes % 60 !== 1 ? 's' : ''}`;
-                                    return `${minutes} minute${minutes > 1 ? 's' : ''}`;
+                                    const dayUnit = days > 1 ? t('time.days') : t('time.day');
+                                    const hourUnit = (hours % 24) > 1 ? t('time.hours') : t('time.hour');
+                                    const minuteUnit = (minutes % 60) > 1 ? t('time.minutes') : t('time.minute');
+                                    const minuteUnitSingle = minutes > 1 ? t('time.minutes') : t('time.minute');
+                                    if (days > 0) return `${days} ${dayUnit} ${hours % 24} ${hourUnit}`;
+                                    if (hours > 0) return `${hours} ${hours > 1 ? t('time.hours') : t('time.hour')} ${minutes % 60} ${minuteUnit}`;
+                                    return `${minutes} ${minuteUnitSingle}`;
                                   })()}
                                 </div>
                               </div>
@@ -1088,9 +1093,9 @@ export function EmailViewer({
                             <div className="flex items-start gap-2">
                               <List className="w-3.5 h-3.5 text-muted-foreground mt-0.5" />
                               <div className="flex-1 min-w-0">
-                                <span className="font-medium text-muted-foreground">Part of conversation:</span>
+                                <span className="font-medium text-muted-foreground">{t('conversation_part_label')}</span>
                                 <div className="text-foreground text-xs mt-0.5">
-                                  {email.references.length} previous message{email.references.length > 1 ? 's' : ''} in this thread
+                                  {t(email.references.length === 1 ? 'previous_messages' : 'previous_messages_plural', { count: email.references.length })}
                                 </div>
                               </div>
                             </div>
@@ -1136,7 +1141,7 @@ export function EmailViewer({
             <div className="flex-1 min-w-0">
               <div className="flex items-center gap-2 flex-wrap">
                 <span className="font-semibold text-foreground">
-                  {sender?.name || sender?.email || "Unknown"}
+                  {sender?.name || sender?.email || t('unknown_sender')}
                 </span>
                 {sender?.email && sender?.name && (
                   <span className="text-sm text-muted-foreground">
@@ -1334,7 +1339,7 @@ export function EmailViewer({
                     value={quickReplyText}
                     onChange={(e) => setQuickReplyText(e.target.value)}
                     onFocus={() => setIsQuickReplyFocused(true)}
-                    placeholder="Write a quick reply..."
+                    placeholder={t('quick_reply_placeholder')}
                     className={cn(
                       "w-full px-3 py-2 text-sm border border-border bg-background text-foreground rounded-lg",
                       "hover:border-accent focus:border-primary focus:outline-none focus:ring-1 focus:ring-primary transition-all",
@@ -1348,7 +1353,7 @@ export function EmailViewer({
                   {(isQuickReplyFocused || quickReplyText) && (
                     <div className="flex items-center justify-between gap-2 animate-in fade-in slide-in-from-top-1 duration-200">
                       <div className="text-xs text-muted-foreground">
-                        {quickReplyText.length > 0 && `${quickReplyText.length} characters`}
+                        {quickReplyText.length > 0 && t('characters_count', { count: quickReplyText.length })}
                       </div>
                       <div className="flex items-center gap-2">
                         <Button
@@ -1360,7 +1365,7 @@ export function EmailViewer({
                           }}
                           disabled={isSendingQuickReply}
                         >
-                          Cancel
+                          {tCommon('cancel')}
                         </Button>
                         <Button
                           variant="ghost"
@@ -1370,7 +1375,7 @@ export function EmailViewer({
                           className="text-muted-foreground"
                         >
                           <MoreVertical className="w-4 h-4 mr-1" />
-                          More options
+                          {t('more_options')}
                         </Button>
                         <Button
                           size="sm"
@@ -1393,12 +1398,12 @@ export function EmailViewer({
                           {isSendingQuickReply ? (
                             <>
                               <Loader2 className="w-4 h-4 mr-1 animate-spin" />
-                              Sending...
+                              {t('sending')}
                             </>
                           ) : (
                             <>
                               <Reply className="w-4 h-4 mr-1" />
-                              Send
+                              {t('send')}
                             </>
                           )}
                         </Button>
diff --git a/components/layout/sidebar.tsx b/components/layout/sidebar.tsx
index 0a7f56b..83f4682 100644
--- a/components/layout/sidebar.tsx
+++ b/components/layout/sidebar.tsx
@@ -95,6 +95,7 @@ function MailboxTreeItem({
   onToggleExpand: (id: string) => void;
   isCollapsed: boolean;
 }) {
+  const t = useTranslations('sidebar');
   const hasChildren = node.children.length > 0;
   const isExpanded = expandedFolders.has(node.id);
   const Icon = getIconForMailbox(node.role, node.name, hasChildren, isExpanded, node.isShared, node.id);
@@ -133,7 +134,7 @@ function MailboxTreeItem({
               "hover:bg-muted active:bg-accent"
             )}
             style={{ marginLeft: indentPixels }}
-            title={isExpanded ? "Collapse" : "Expand"}
+            title={isExpanded ? t('collapse_tooltip') : t('expand_tooltip')}
           >
             {isExpanded ? (
               <ChevronDown className="w-3 h-3 text-muted-foreground" />
diff --git a/locales/en/common.json b/locales/en/common.json
index 9d467f9..a44572a 100644
--- a/locales/en/common.json
+++ b/locales/en/common.json
@@ -50,7 +50,9 @@
       "important": "Important"
     },
     "expand": "Expand",
-    "collapse": "Collapse"
+    "collapse": "Collapse",
+    "expand_tooltip": "Expand",
+    "collapse_tooltip": "Collapse"
   },
   "email_list": {
     "no_emails": "No emails",
@@ -66,7 +68,11 @@
   "email_viewer": {
     "no_email_selected": "No email selected",
     "no_email_description": "Select an email from the list to view it here",
+    "no_conversation_selected": "No conversation selected",
+    "no_conversation_description": "Choose a conversation from the list to read it here",
     "no_subject": "(No Subject)",
+    "loading_email": "Loading email...",
+    "loading": "Loading...",
     "reply": "Reply",
     "reply_all": "Reply All",
     "forward": "Forward",
@@ -97,6 +103,32 @@
     "trust_sender": "Always trust this sender",
     "back_to_list": "Back to list",
     "message_details": "Message Details",
+    "more_reply_options": "More reply options",
+    "set_color": "Set color",
+    "more_actions": "More actions",
+    "remove_color": "Remove color",
+    "more_count": "+{count} more",
+    "characters_count": "{count} characters",
+    "quick_reply_placeholder": "Write a quick reply...",
+    "more_options": "More options",
+    "sending": "Sending...",
+    "security_authentication": "Security & Authentication",
+    "technical_details": "Technical Details",
+    "message_id_label": "Message-ID:",
+    "reply_to_label": "Reply-To:",
+    "delivery_time_label": "Delivery time:",
+    "conversation_part_label": "Part of conversation:",
+    "previous_messages": "{count} previous message",
+    "previous_messages_plural": "{count} previous messages",
+    "time": {
+      "day": "day",
+      "days": "days",
+      "hour": "hour",
+      "hours": "hours",
+      "minute": "minute",
+      "minutes": "minutes"
+    },
+    "unknown_sender": "Unknown",
     "authentication": {
       "title": "Authentication",
       "status": {
@@ -157,6 +189,17 @@
     "attach": "Attach",
     "discard": "Discard",
     "discard_draft_confirm": "You have unsaved changes. Do you want to discard this draft?",
+    "saving": "Saving...",
+    "draft_saved": "Draft saved",
+    "save_failed": "Failed to save",
+    "to_placeholder": "Recipient email addresses (comma separated)",
+    "cc_placeholder": "Cc recipients (comma separated)",
+    "bcc_placeholder": "Bcc recipients (comma separated)",
+    "subject_placeholder": "Subject",
+    "cc_label": "Cc:",
+    "bcc_label": "Bcc:",
+    "subject_label": "Subject:",
+    "file_size_kb": "KB",
     "quote": {
       "reply_header": "On {{date}}, {{sender}} wrote:",
       "forward_header": "---------- Forwarded message ----------",
@@ -182,7 +225,8 @@
     "logout": "Logout",
     "yes": "Yes",
     "no": "No",
-    "unknown": "Unknown"
+    "unknown": "Unknown",
+    "app_title": "Webmail"
   },
   "notifications": {
     "email_sent": "Email sent successfully",
diff --git a/locales/fr/common.json b/locales/fr/common.json
index 96d961c..e49b167 100644
--- a/locales/fr/common.json
+++ b/locales/fr/common.json
@@ -50,7 +50,9 @@
       "important": "Important"
     },
     "expand": "Développer",
-    "collapse": "Réduire"
+    "collapse": "Réduire",
+    "expand_tooltip": "Développer",
+    "collapse_tooltip": "Réduire"
   },
   "email_list": {
     "no_emails": "Aucun email",
@@ -66,7 +68,11 @@
   "email_viewer": {
     "no_email_selected": "Aucun email sélectionné",
     "no_email_description": "Sélectionnez un email dans la liste pour le voir ici",
+    "no_conversation_selected": "Aucune conversation sélectionnée",
+    "no_conversation_description": "Choisissez une conversation dans la liste pour la lire ici",
     "no_subject": "(Sans objet)",
+    "loading_email": "Chargement de l'email...",
+    "loading": "Chargement...",
     "reply": "Répondre",
     "reply_all": "Répondre à tous",
     "forward": "Transférer",
@@ -97,6 +103,32 @@
     "trust_sender": "Toujours faire confiance à cet expéditeur",
     "back_to_list": "Retour à la liste",
     "message_details": "Détails du message",
+    "more_reply_options": "Plus d'options de réponse",
+    "set_color": "Définir la couleur",
+    "more_actions": "Plus d'actions",
+    "remove_color": "Retirer la couleur",
+    "more_count": "+{count} de plus",
+    "characters_count": "{count} caractères",
+    "quick_reply_placeholder": "Écrivez une réponse rapide...",
+    "more_options": "Plus d'options",
+    "sending": "Envoi en cours...",
+    "security_authentication": "Sécurité et authentification",
+    "technical_details": "Détails techniques",
+    "message_id_label": "ID du message :",
+    "reply_to_label": "Répondre à :",
+    "delivery_time_label": "Temps de livraison :",
+    "conversation_part_label": "Partie de la conversation :",
+    "previous_messages": "{count} message précédent",
+    "previous_messages_plural": "{count} messages précédents",
+    "time": {
+      "day": "jour",
+      "days": "jours",
+      "hour": "heure",
+      "hours": "heures",
+      "minute": "minute",
+      "minutes": "minutes"
+    },
+    "unknown_sender": "Inconnu",
     "authentication": {
       "title": "Authentification",
       "status": {
@@ -157,6 +189,17 @@
     "attach": "Joindre",
     "discard": "Supprimer",
     "discard_draft_confirm": "Vous avez des modifications non enregistrées. Voulez-vous supprimer ce brouillon ?",
+    "saving": "Enregistrement...",
+    "draft_saved": "Brouillon enregistré",
+    "save_failed": "Échec de l'enregistrement",
+    "to_placeholder": "Adresses email des destinataires (séparées par des virgules)",
+    "cc_placeholder": "Destinataires en copie (séparés par des virgules)",
+    "bcc_placeholder": "Destinataires en copie cachée (séparés par des virgules)",
+    "subject_placeholder": "Objet",
+    "cc_label": "Cc :",
+    "bcc_label": "Cci :",
+    "subject_label": "Objet :",
+    "file_size_kb": "Ko",
     "quote": {
       "reply_header": "Le {{date}}, {{sender}} a écrit :",
       "forward_header": "---------- Message transféré ----------",
@@ -182,7 +225,8 @@
     "logout": "Déconnexion",
     "yes": "Oui",
     "no": "Non",
-    "unknown": "Inconnu"
+    "unknown": "Inconnu",
+    "app_title": "Webmail"
   },
   "notifications": {
     "email_sent": "Email envoyé avec succès",