diff --git a/addons/mail/views/res_partner_views.xml b/addons/mail/views/res_partner_views.xml
index 278d3fae535..f414646572d 100644
--- a/addons/mail/views/res_partner_views.xml
+++ b/addons/mail/views/res_partner_views.xml
@@ -15,7 +15,7 @@
                             title="This email is blacklisted for mass mailings. Click to unblacklist."
                             type="object" context="{'default_email': email}" groups="base.group_user"
                             attrs="{'invisible': [('is_blacklisted', '=', False)]}"/>
-                        <field name="email" widget="email"/>
+                        <field name="email" widget="email" context="{'gravatar_image': True}" attrs="{'required': [('user_ids','!=', [])]}"/>
                     </div>
                 </xpath>
                 <xpath expr="//sheet" position="after">