diff --git a/addons/mail/static/src/components/composer/composer.js b/addons/mail/static/src/components/composer/composer.js
index 4434697f8fb..991d5fc4482 100644
--- a/addons/mail/static/src/components/composer/composer.js
+++ b/addons/mail/static/src/components/composer/composer.js
@@ -261,6 +261,7 @@ class Composer extends Component {
      */
     _onClickSend() {
         this._postMessage();
+        this.focus();
     }
 
     /**
diff --git a/addons/mail/static/src/components/thread_view/thread_view_tests.js b/addons/mail/static/src/components/thread_view/thread_view_tests.js
index 2c81214c024..8e95fd80d4c 100644
--- a/addons/mail/static/src/components/thread_view/thread_view_tests.js
+++ b/addons/mail/static/src/components/thread_view/thread_view_tests.js
@@ -1697,10 +1697,11 @@ QUnit.test('first unseen message should be directly preceded by the new message
     document.querySelector('.o_ComposerTextInput_textarea').focus();
     await afterNextRender(() => document.execCommand('insertText', false, "/who"));
     await afterNextRender(() => {
-        document.querySelector('.o_Composer_buttonSend').focus();
         document.querySelector('.o_Composer_buttonSend').click();
     });
 
+    // composer is focused by default, we remove that focus
+    document.querySelector('.o_ComposerTextInput_textarea').blur();
     // simulate receiving a message
     await afterNextRender(() => this.env.services.rpc({
         route: '/mail/chat_post',
@@ -1732,6 +1733,32 @@ QUnit.test('first unseen message should be directly preceded by the new message
     );
 });
 
+QUnit.test('composer should be focused automatically after clicking on the send button [REQUIRE FOCUS]', async function (assert) {
+    assert.expect(1);
+
+    this.data['mail.channel'].records.push({id: 20,});
+    await this.start();
+    const thread = this.env.models['mail.thread'].findFromIdentifyingData({
+        id: 20,
+        model: 'mail.channel'
+    });
+    const threadViewer = this.env.models['mail.thread_viewer'].create({
+        hasThreadView: true,
+        thread: [['link', thread]],
+    });
+    await this.createThreadViewComponent(threadViewer.threadView, { hasComposer: true });
+    document.querySelector('.o_ComposerTextInput_textarea').focus();
+    await afterNextRender(() => document.execCommand('insertText', false, "Dummy Message"));
+    await afterNextRender(() => {
+        document.querySelector('.o_Composer_buttonSend').click();
+    });
+    assert.hasClass(
+        document.querySelector('.o_Composer'),
+        'o-focused',
+        "composer should be focused automatically after clicking on the send button"
+    );
+});
+
 });
 });
 });