diff --git a/packages/twenty-server/src/modules/messaging/message-import-manager/drivers/microsoft/services/microsoft-get-message-list.service.ts b/packages/twenty-server/src/modules/messaging/message-import-manager/drivers/microsoft/services/microsoft-get-message-list.service.ts
index 4d10286a0..ba74f0e05 100644
--- a/packages/twenty-server/src/modules/messaging/message-import-manager/drivers/microsoft/services/microsoft-get-message-list.service.ts
+++ b/packages/twenty-server/src/modules/messaging/message-import-manager/drivers/microsoft/services/microsoft-get-message-list.service.ts
@@ -85,7 +85,11 @@ export class MicrosoftGetMessageListService {
       return true;
     };
 
-    const pageIterator = new PageIterator(microsoftClient, response, callback);
+    const pageIterator = new PageIterator(microsoftClient, response, callback, {
+      headers: {
+        Prefer: `odata.maxpagesize=${MESSAGING_MICROSOFT_USERS_MESSAGES_LIST_MAX_RESULT}, IdType="ImmutableId"`,
+      },
+    });
 
     await pageIterator.iterate().catch((error) => {
       this.microsoftHandleErrorService.handleMicrosoftMessageFetchError(error);
@@ -203,7 +207,11 @@ export class MicrosoftGetMessageListService {
       return true;
     };
 
-    const pageIterator = new PageIterator(microsoftClient, response, callback);
+    const pageIterator = new PageIterator(microsoftClient, response, callback, {
+      headers: {
+        Prefer: `odata.maxpagesize=${MESSAGING_MICROSOFT_USERS_MESSAGES_LIST_MAX_RESULT}, IdType="ImmutableId"`,
+      },
+    });
 
     await pageIterator.iterate().catch((error) => {
       this.microsoftHandleErrorService.handleMicrosoftMessageFetchError(error);