diff --git a/src/pretix/base/templates/pretixbase/email/simple_logo.html b/src/pretix/base/templates/pretixbase/email/simple_logo.html
index 1842e4abd..f4b725671 100644
--- a/src/pretix/base/templates/pretixbase/email/simple_logo.html
+++ b/src/pretix/base/templates/pretixbase/email/simple_logo.html
@@ -172,8 +172,13 @@
             <!--[if !mso]><!-- -->
             <tr>
                 <td style="line-height: 0" align="center">
-                    <img src="{{ site_url }}{{ event.settings.logo_image|thumb:'5000x120' }}" alt="{{ event.name }}"
-                         style="height: auto; max-width: 100%;" />
+                    {% if event.settings.logo_image|thumb:'5000x120'|first == '/' %}
+                        <img src="{{ site_url }}{{ event.settings.logo_image|thumb:'5000x120' }}" alt="{{ event.name }}"
+                             style="height: auto; max-width: 100%;" />
+                    {% else %}
+                        <img src="{{ event.settings.logo_image|thumb:'5000x120' }}" alt="{{ event.name }}"
+                             style="height: auto; max-width: 100%;" />
+                    {% endif %}
                 </td>
             </tr>
             <!--<![endif]-->