diff --git a/init_app.py b/init_app.py
index b77088ea..81ac645d 100644
--- a/init_app.py
+++ b/init_app.py
@@ -1,5 +1,6 @@
 """Initial loading script"""
-from app.models import Mailbox, Contact
+from app.config import ALIAS_DOMAINS
+from app.models import Mailbox, Contact, PublicDomain
 from app.log import LOG
 from app.extensions import db
 from app.pgp_utils import load_public_key
@@ -32,8 +33,20 @@ def load_pgp_public_keys():
     LOG.d("Finish load_pgp_public_keys")
 
 
+def add_public_domains():
+    for alias_domain in ALIAS_DOMAINS:
+        if PublicDomain.get_by(domain=alias_domain):
+            LOG.d("%s is already a public domain", alias_domain)
+        else:
+            LOG.info("Add %s to public domain", alias_domain)
+            PublicDomain.create(domain=alias_domain)
+
+    db.session.commit()
+
+
 if __name__ == "__main__":
     app = create_app()
 
     with app.app_context():
         load_pgp_public_keys()
+        add_public_domains()