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 a03223780..bd4003ce3 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
@@ -9,25 +9,46 @@ import { EmailThreadMessage } from '@/activities/emails/components/EmailThreadMe
 import { IntermediaryMessages } from '@/activities/emails/right-drawer/components/IntermediaryMessages';
 import { useRightDrawerEmailThread } from '@/activities/emails/right-drawer/hooks/useRightDrawerEmailThread';
 import { emailThreadIdWhenEmailThreadWasClosedState } from '@/activities/emails/states/lastViewableEmailThreadIdState';
+import { Button } from '@/ui/input/button/components/Button';
 import { RIGHT_DRAWER_CLICK_OUTSIDE_LISTENER_ID } from '@/ui/layout/right-drawer/constants/RightDrawerClickOutsideListener';
 import { messageThreadState } from '@/ui/layout/right-drawer/states/messageThreadState';
 import { useClickOutsideListener } from '@/ui/utilities/pointer-event/hooks/useClickOutsideListener';
+import { IconArrowBackUp } from 'twenty-ui';
 
 const StyledContainer = styled.div`
   box-sizing: border-box;
   display: flex;
   flex-direction: column;
-  height: 100%;
+  height: 85%;
   justify-content: flex-start;
   overflow-y: auto;
   position: relative;
 `;
 
+const StyledButtonContainer = styled.div`
+  background: ${({ theme }) => theme.background.secondary};
+  bottom: 0;
+  display: flex;
+  height: 110px;
+  left: 0;
+  padding-left: ${({ theme }) => theme.spacing(7)};
+  padding-top: ${({ theme }) => theme.spacing(5)};
+  position: fixed;
+  right: 0;
+`;
+
 export const RightDrawerEmailThread = () => {
   const setMessageThread = useSetRecoilState(messageThreadState);
 
-  const { thread, messages, fetchMoreMessages, loading } =
-    useRightDrawerEmailThread();
+  const {
+    thread,
+    messages,
+    fetchMoreMessages,
+    threadLoading,
+    messageThreadExternalId,
+    connectedAccountHandle,
+    messageChannelLoading,
+  } = useRightDrawerEmailThread();
 
   const visibleMessages = useMemo(() => {
     return messages.filter(({ messageParticipants }) => {
@@ -67,10 +88,6 @@ export const RightDrawerEmailThread = () => {
     ),
   });
 
-  if (!thread) {
-    return null;
-  }
-
   const visibleMessagesCount = visibleMessages.length;
   const is5OrMoreMessages = visibleMessagesCount >= 5;
   const firstMessages = visibleMessages.slice(
@@ -83,9 +100,26 @@ export const RightDrawerEmailThread = () => {
   const lastMessage = visibleMessages[visibleMessagesCount - 1];
   const subject = visibleMessages[0]?.subject;
 
+  const canReply = useMemo(() => {
+    return (
+      connectedAccountHandle && lastMessage && messageThreadExternalId != null
+    );
+  }, [connectedAccountHandle, lastMessage, messageThreadExternalId]);
+
+  const handleReplyClick = () => {
+    if (!canReply) {
+      return;
+    }
+
+    const url = `https://mail.google.com/mail/?authuser=${connectedAccountHandle}#all/${messageThreadExternalId}`;
+    window.open(url, '_blank');
+  };
+  if (!thread) {
+    return null;
+  }
   return (
     <StyledContainer>
-      {loading ? (
+      {threadLoading ? (
         <EmailLoader loadingText="Loading thread" />
       ) : (
         <>
@@ -110,11 +144,21 @@ export const RightDrawerEmailThread = () => {
             isExpanded
           />
           <CustomResolverFetchMoreLoader
-            loading={loading}
+            loading={threadLoading}
             onLastRowVisible={fetchMoreMessages}
           />
         </>
       )}
+      {canReply && !messageChannelLoading ? (
+        <StyledButtonContainer>
+          <Button
+            onClick={handleReplyClick}
+            title="Reply (View in Gmail)"
+            Icon={IconArrowBackUp}
+            disabled={!canReply}
+          ></Button>
+        </StyledButtonContainer>
+      ) : null}
     </StyledContainer>
   );
 };
diff --git a/packages/twenty-front/src/modules/activities/emails/right-drawer/hooks/__tests__/useRightDrawerEmailThread.test.tsx b/packages/twenty-front/src/modules/activities/emails/right-drawer/hooks/__tests__/useRightDrawerEmailThread.test.tsx
index 1bda68947..f88c7b79a 100644
--- a/packages/twenty-front/src/modules/activities/emails/right-drawer/hooks/__tests__/useRightDrawerEmailThread.test.tsx
+++ b/packages/twenty-front/src/modules/activities/emails/right-drawer/hooks/__tests__/useRightDrawerEmailThread.test.tsx
@@ -50,7 +50,7 @@ describe('useRightDrawerEmailThread', () => {
 
     expect(result.current.thread).toBeDefined();
     expect(result.current.messages).toEqual(mockMessages);
-    expect(result.current.loading).toBeFalsy();
+    expect(result.current.threadLoading).toBeFalsy();
     expect(result.current.fetchMoreMessages).toBeInstanceOf(Function);
   });
 });
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 da57c1c4d..23d004f05 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
@@ -1,9 +1,12 @@
-import { useCallback } from 'react';
+import { useCallback, useEffect, useState } from 'react';
 import { useRecoilValue } from 'recoil';
 
 import { fetchAllThreadMessagesOperationSignatureFactory } from '@/activities/emails/graphql/operation-signatures/factories/fetchAllThreadMessagesOperationSignatureFactory';
 import { EmailThread } from '@/activities/emails/types/EmailThread';
 import { EmailThreadMessage } from '@/activities/emails/types/EmailThreadMessage';
+
+import { MessageChannel } from '@/accounts/types/MessageChannel';
+import { MessageChannelMessageAssociation } from '@/activities/emails/types/MessageChannelMessageAssociation';
 import { CoreObjectNameSingular } from '@/object-metadata/types/CoreObjectNameSingular';
 import { useFindManyRecords } from '@/object-record/hooks/useFindManyRecords';
 import { useFindOneRecord } from '@/object-record/hooks/useFindOneRecord';
@@ -14,6 +17,11 @@ import { useIsFeatureEnabled } from '@/workspace/hooks/useIsFeatureEnabled';
 export const useRightDrawerEmailThread = () => {
   const viewableRecordId = useRecoilValue(viewableRecordIdState);
   const { upsertRecords } = useUpsertRecordsInStore();
+  const [lastMessageId, setLastMessageId] = useState<string | null>(null);
+  const [lastMessageChannelId, setLastMessageChannelId] = useState<
+    string | null
+  >(null);
+  const [isMessagesFetchComplete, setIsMessagesFetchComplete] = useState(false);
 
   const { record: thread } = useFindOneRecord<EmailThread>({
     objectNameSingular: CoreObjectNameSingular.MessageThread,
@@ -38,8 +46,9 @@ export const useRightDrawerEmailThread = () => {
 
   const {
     records: messages,
-    loading,
+    loading: messagesLoading,
     fetchMoreRecords,
+    hasNextPage,
   } = useFindManyRecords<EmailThreadMessage>({
     limit: FETCH_ALL_MESSAGES_OPERATION_SIGNATURE.variables.limit,
     filter: FETCH_ALL_MESSAGES_OPERATION_SIGNATURE.variables.filter,
@@ -51,15 +60,76 @@ export const useRightDrawerEmailThread = () => {
   });
 
   const fetchMoreMessages = useCallback(() => {
-    if (!loading) {
+    if (!messagesLoading && hasNextPage) {
       fetchMoreRecords();
+    } else if (!hasNextPage) {
+      setIsMessagesFetchComplete(true);
     }
-  }, [fetchMoreRecords, loading]);
+  }, [fetchMoreRecords, messagesLoading, hasNextPage]);
+
+  useEffect(() => {
+    if (messages.length > 0 && isMessagesFetchComplete) {
+      const lastMessage = messages[messages.length - 1];
+      setLastMessageId(lastMessage.id);
+    }
+  }, [messages, isMessagesFetchComplete]);
+
+  const { records: messageChannelMessageAssociationData } =
+    useFindManyRecords<MessageChannelMessageAssociation>({
+      filter: {
+        messageId: {
+          eq: lastMessageId ?? '',
+        },
+      },
+      objectNameSingular:
+        CoreObjectNameSingular.MessageChannelMessageAssociation,
+      recordGqlFields: {
+        id: true,
+        messageId: true,
+        messageChannelId: true,
+        messageThreadExternalId: true,
+      },
+      skip: !lastMessageId || !isMessagesFetchComplete,
+    });
+
+  useEffect(() => {
+    if (messageChannelMessageAssociationData.length > 0) {
+      setLastMessageChannelId(
+        messageChannelMessageAssociationData[0].messageChannelId,
+      );
+    }
+  }, [messageChannelMessageAssociationData]);
+
+  const { records: messageChannelData, loading: messageChannelLoading } =
+    useFindManyRecords<MessageChannel>({
+      filter: {
+        id: {
+          eq: lastMessageChannelId ?? '',
+        },
+      },
+      objectNameSingular: CoreObjectNameSingular.MessageChannel,
+      recordGqlFields: {
+        id: true,
+        handle: true,
+        connectedAccountId: true,
+      },
+      skip: !lastMessageChannelId,
+    });
+
+  const messageThreadExternalId =
+    messageChannelMessageAssociationData.length > 0
+      ? messageChannelMessageAssociationData[0].messageThreadExternalId
+      : null;
+  const connectedAccountHandle =
+    messageChannelData.length > 0 ? messageChannelData[0].handle : null;
 
   return {
     thread,
     messages,
-    loading,
+    messageThreadExternalId,
+    connectedAccountHandle,
+    threadLoading: messagesLoading,
+    messageChannelLoading,
     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
new file mode 100644
index 000000000..ef0bfb1b6
--- /dev/null
+++ b/packages/twenty-front/src/modules/activities/emails/types/MessageChannelMessageAssociation.ts
@@ -0,0 +1,7 @@
+export type MessageChannelMessageAssociation = {
+  __typename: 'MessageChannelMessageAssociation';
+  id: string;
+  messageId: string;
+  messageChannelId: string;
+  messageThreadExternalId: string;
+};
diff --git a/packages/twenty-front/src/modules/object-metadata/types/CoreObjectNameSingular.ts b/packages/twenty-front/src/modules/object-metadata/types/CoreObjectNameSingular.ts
index 2255c8cb5..6e0d13f48 100644
--- a/packages/twenty-front/src/modules/object-metadata/types/CoreObjectNameSingular.ts
+++ b/packages/twenty-front/src/modules/object-metadata/types/CoreObjectNameSingular.ts
@@ -29,4 +29,5 @@ export enum CoreObjectNameSingular {
   WorkspaceMember = 'workspaceMember',
   MessageThreadSubscriber = 'messageThreadSubscriber',
   Workflow = 'workflow',
+  MessageChannelMessageAssociation = 'messageChannelMessageAssociation',
 }