diff --git a/roles/notifs/frontend/templates/fmn.web.py b/roles/notifs/frontend/templates/fmn.web.py
index 8cd199768b..2c54e6c721 100644
--- a/roles/notifs/frontend/templates/fmn.web.py
+++ b/roles/notifs/frontend/templates/fmn.web.py
@@ -25,6 +25,9 @@ config = {
     },
     {% endif %}
 
+    # We need to know this to call VERFY to validate new addresses.
+    "fmn.email.mailserver": "bastion01.phx2.fedoraproject.org:25",
+
     # Some configuration for the rule processors
     "fmn.rules.utils.use_pkgdb2": True,
     {% if env == 'staging' %}