diff --git a/components/calendar/calendar-client.tsx b/components/calendar/calendar-client.tsx
index 2358ebb..ca28304 100644
--- a/components/calendar/calendar-client.tsx
+++ b/components/calendar/calendar-client.tsx
@@ -175,9 +175,8 @@ function CalendarDialog({ open, onClose, onSave, onDelete, onSyncSetup, initialD
       if (response.ok) {
         const data = await response.json();
         if (data.success && data.accounts) {
-          // Filter Infomaniak and Microsoft accounts
+          // Filter Microsoft accounts only
           const syncableAccounts = data.accounts.filter((acc: any) => 
-            (acc.host && acc.host.includes('infomaniak')) ||
             (acc.host && acc.host.includes('outlook.office365.com') && acc.use_oauth)
           );
           setAvailableAccounts(syncableAccounts.map((acc: any) => ({
@@ -198,13 +197,8 @@ function CalendarDialog({ open, onClose, onSave, onDelete, onSyncSetup, initialD
     
     setIsDiscovering(true);
     try {
-      // Determine which endpoint to use based on account type
-      const selectedAccount = availableAccounts.find(acc => acc.id === selectedAccountId);
-      const isMicrosoft = selectedAccount?.host?.includes('outlook.office365.com');
-      
-      const endpoint = isMicrosoft 
-        ? "/api/calendars/sync/discover-microsoft"
-        : "/api/calendars/sync/discover";
+      // Use Microsoft endpoint only
+      const endpoint = "/api/calendars/sync/discover-microsoft";
       
       const response = await fetch(endpoint, {
         method: "POST",
@@ -214,11 +208,11 @@ function CalendarDialog({ open, onClose, onSave, onDelete, onSyncSetup, initialD
       
       if (response.ok) {
         const data = await response.json();
-        // Normalize calendar format (Infomaniak uses 'url', Microsoft uses 'id' and 'webLink')
+        // Normalize calendar format (Microsoft uses 'id' and 'webLink')
         const normalizedCalendars = (data.calendars || []).map((cal: any) => ({
           id: cal.id,
           name: cal.name,
-          url: cal.url || cal.webLink || cal.id, // Use url, webLink, or id as fallback
+          url: cal.webLink || cal.id, // Use webLink or id as fallback
         }));
         setAvailableCalendars(normalizedCalendars);
       } else {
@@ -238,15 +232,12 @@ function CalendarDialog({ open, onClose, onSave, onDelete, onSyncSetup, initialD
     
     setIsSettingUpSync(true);
     try {
-      // Determine provider based on selected account
+      // All accounts are Microsoft
       const selectedAccount = availableAccounts.find(acc => acc.id === selectedAccountId);
-      const isMicrosoft = selectedAccount?.host?.includes('outlook.office365.com');
-      const provider = isMicrosoft ? 'microsoft' : 'infomaniak';
+      const provider = 'microsoft';
       
       // For Microsoft, use calendar ID instead of URL
-      const externalCalendarId = isMicrosoft 
-        ? availableCalendars.find(cal => cal.url === selectedCalendarUrl)?.id || selectedCalendarUrl
-        : null;
+      const externalCalendarId = availableCalendars.find(cal => cal.url === selectedCalendarUrl)?.id || selectedCalendarUrl;
       
       await onSyncSetup(initialData.id, selectedAccountId, selectedCalendarUrl, externalCalendarId, provider);
       setShowSyncSection(false);
@@ -450,7 +441,7 @@ function CalendarDialog({ open, onClose, onSave, onDelete, onSyncSetup, initialD
                     {showSyncSection && (
                       <div className="space-y-3 p-3 bg-gray-50 rounded-lg">
                         <div className="space-y-2">
-                          <Label className="text-sm text-gray-700">Compte email (Infomaniak)</Label>
+                          <Label className="text-sm text-gray-700">Compte email (Microsoft)</Label>
                           <select
                             value={selectedAccountId}
                             onChange={(e) => {
@@ -1609,7 +1600,7 @@ export function CalendarClient({ initialCalendars, userId, userProfile }: Calend
               mailCredentialId,
               externalCalendarUrl,
               externalCalendarId,
-              provider: provider || "infomaniak",
+              provider: provider || "microsoft",
             }),
           });