[IMP] add help text

mail_outgoing_views.xml

@@ -9,6 +9,11 @@
             <field name="view_mode">tree,form</field>
             <field name="context">{}</field>
             <field name="search_view_id" ref="mail.view_mail_search"/>
+            <field name="help" type="html">
+				<p>
+					Failed or delayed emails will be shown here. You will be able to retry failed emails and send delayed emails manually.
+                </p>
+            </field>
         </record>
 
         <menuitem name="Outgoing" id="menu_mail_outgoing" parent="mail.mail_feeds" action="action_mail_outgoing" sequence="20"/>