diff --git a/packages/twenty-front/src/modules/activities/emails/right-drawer/components/RightDrawerEmailThread.tsx b/packages/twenty-front/src/modules/activities/emails/right-drawer/components/RightDrawerEmailThread.tsx
index 92b3fdc7e..dcba48a72 100644
--- a/packages/twenty-front/src/modules/activities/emails/right-drawer/components/RightDrawerEmailThread.tsx
+++ b/packages/twenty-front/src/modules/activities/emails/right-drawer/components/RightDrawerEmailThread.tsx
@@ -55,6 +55,7 @@ export const RightDrawerEmailThread = () => {
     connectedAccountHandle,
     messageChannelLoading,
     connectedAccountProvider,
+    lastMessageExternalId,
   } = useRightDrawerEmailThread();
 
   useEffect(() => {
@@ -117,7 +118,7 @@ export const RightDrawerEmailThread = () => {
     let url: string;
     switch (connectedAccountProvider) {
       case ConnectedAccountProvider.MICROSOFT:
-        url = `https://outlook.office365.com/mail/inbox/id/${messageThreadExternalId}`;
+        url = `https://outlook.office.com/mail/deeplink?ItemID=${lastMessageExternalId}`;
         window.open(url, '_blank');
         break;
       case ConnectedAccountProvider.GOOGLE:
diff --git a/packages/twenty-front/src/modules/activities/emails/right-drawer/hooks/useRightDrawerEmailThread.ts b/packages/twenty-front/src/modules/activities/emails/right-drawer/hooks/useRightDrawerEmailThread.ts
index 705dfc8f6..d41c54cb3 100644
--- a/packages/twenty-front/src/modules/activities/emails/right-drawer/hooks/useRightDrawerEmailThread.ts
+++ b/packages/twenty-front/src/modules/activities/emails/right-drawer/hooks/useRightDrawerEmailThread.ts
@@ -109,6 +109,7 @@ export const useRightDrawerEmailThread = () => {
         messageId: true,
         messageChannelId: true,
         messageThreadExternalId: true,
+        messageExternalId: true,
       },
       skip: !lastMessageId || !isMessagesFetchComplete,
     });
@@ -144,6 +145,10 @@ export const useRightDrawerEmailThread = () => {
     messageChannelMessageAssociationData.length > 0
       ? messageChannelMessageAssociationData[0].messageThreadExternalId
       : null;
+  const lastMessageExternalId =
+    messageChannelMessageAssociationData.length > 0
+      ? messageChannelMessageAssociationData[0].messageExternalId
+      : null;
   const connectedAccountHandle =
     messageChannelData.length > 0 ? messageChannelData[0].handle : null;
 
@@ -175,6 +180,7 @@ export const useRightDrawerEmailThread = () => {
     connectedAccountProvider,
     threadLoading: messagesLoading,
     messageChannelLoading,
+    lastMessageExternalId,
     fetchMoreMessages,
   };
 };
diff --git a/packages/twenty-front/src/modules/activities/emails/types/MessageChannelMessageAssociation.ts b/packages/twenty-front/src/modules/activities/emails/types/MessageChannelMessageAssociation.ts
index ef0bfb1b6..c2a35c22f 100644
--- a/packages/twenty-front/src/modules/activities/emails/types/MessageChannelMessageAssociation.ts
+++ b/packages/twenty-front/src/modules/activities/emails/types/MessageChannelMessageAssociation.ts
@@ -4,4 +4,5 @@ export type MessageChannelMessageAssociation = {
   messageId: string;
   messageChannelId: string;
   messageThreadExternalId: string;
+  messageExternalId: string;
 };