diff --git a/membershipworks/models.py b/membershipworks/models.py
index beb89f8..e5a5bdc 100644
--- a/membershipworks/models.py
+++ b/membershipworks/models.py
@@ -163,10 +163,9 @@ class Member(models.Model):
         db_table = "members"
         ordering = ("first_name", "last_name")
 
-    @property
-    def sanitized_mailbox(self):
+    def sanitized_mailbox(self, name_ext: str = ""):
         return django.core.mail.message.sanitize_address(
-            (self.account_name, self.email), settings.DEFAULT_CHARSET
+            (self.account_name + name_ext, self.email), settings.DEFAULT_CHARSET
         )
 
 
diff --git a/paperwork/api.py b/paperwork/api.py
index 1ffcdb6..8b5a991 100644
--- a/paperwork/api.py
+++ b/paperwork/api.py
@@ -30,7 +30,7 @@ class DepartmentViewSet(viewsets.ModelViewSet):
         """
         departments = self.queryset.filter(has_mailing_list=True).prefetch_related(
             "children",
-            "list_moderator_flag",
+            "list_moderator_flag__members",
             Prefetch(
                 "certificationdefinition_set__certificationversion_set__certification_set__member",
                 queryset=Member.objects.with_is_active(),
@@ -39,16 +39,17 @@ class DepartmentViewSet(viewsets.ModelViewSet):
         lists = {}
         for department in departments:
             if department.list_moderator_flag is not None:
-                moderator_emails = department.list_moderator_flag.members.values_list(
-                    "email", flat=True
-                )
+                moderator_emails = {
+                    member.email
+                    for member in department.list_moderator_flag.members.all()
+                }
             else:
                 moderator_emails = []
 
             # TODO: this could be done in SQL instead if
             #       membershipworks was in the same database
             active_certified_members = {
-                member_cert.member.sanitized_mailbox
+                member_cert.member.sanitized_mailbox()
                 for certification in department.certificationdefinition_set.all()
                 for version in certification.certificationversion_set.all()
                 for member_cert in version.certification_set.all()
@@ -79,6 +80,23 @@ class DepartmentViewSet(viewsets.ModelViewSet):
             if department.parent_id is None:
                 recurse_children(department)
 
+        shopleads = {}
+        for department in departments:
+            for member in department.list_moderator_flag.members.all():
+                if member not in shopleads:
+                    shopleads[member] = []
+                shopleads[member].append(department)
+
+        # Add members to the Shop Leads mailing list, but don't configure it
+        lists["ShopLeads"] = {
+            "members": {
+                shoplead.sanitized_mailbox(
+                    f" - {'/'.join(department.name for department in departments)}"
+                )
+                for shoplead, departments in shopleads.items()
+            },
+        }
+
         return Response(lists)