diff --git a/rattail_fabric/rattail.py b/rattail_fabric/rattail.py
index 8f8b94f..a6ba9dc 100644
--- a/rattail_fabric/rattail.py
+++ b/rattail_fabric/rattail.py
@@ -28,7 +28,7 @@ from __future__ import unicode_literals, absolute_import
 
 from fabric.api import sudo, env, cd
 
-from rattail_fabric import make_deploy, make_system_user, mkdir
+from rattail_fabric import make_deploy, make_system_user, mkdir, postgresql
 
 
 deploy = make_deploy(__file__)
@@ -78,3 +78,19 @@ def deploy_rattail_sudoers(remote_path='/etc/sudoers.d/rattail'):
     Deploy the common sudoers file for rattail.
     """
     deploy.sudoers('sudoers', remote_path)
+
+
+def delete_email_recipients(dbname):
+    """
+    Purge all email recipient settings for the given database.
+    """
+    postgresql.sql("delete from setting where name like 'rattail.mail.%.to';", database=dbname)
+    postgresql.sql("delete from setting where name like 'rattail.mail.%.cc';", database=dbname)
+    postgresql.sql("delete from setting where name like 'rattail.mail.%.bcc';", database=dbname)
+
+
+def disable_emails(dbname):
+    """
+    Disable all emails for the given database.
+    """
+    postgresql.sql("update setting set value = 'false' where name like 'rattail.mail.%.enabled';", database=dbname)