diff --git a/sbin/install_newsletter.pl b/sbin/install_newsletter.pl
index 0d782bb..51dc852 100644
--- a/sbin/install_newsletter.pl
+++ b/sbin/install_newsletter.pl
@@ -37,8 +37,44 @@ addRegistrationSteps( $session );
 addConfirmationTemplateColumn( $session );
 addSentToIndex( $session );
 addUseHoneypotColumn( $session );
+addDefaultsToNotNullColumns( $session );
 
 finish($session);
+#-------------------------------------------------------------------------------
+sub addDefaultsToNotNullColumns {
+    my $session = shift;
+    my $db      = $session->db;
+
+    print "\tAdding defaults to not null columns...";
+
+            $db->write('ALTER TABLE `assetAspectMailable` ALTER COLUMN `assetId` SET DEFAULT "";');
+$db->write('ALTER TABLE `assetAspectMailable` ALTER COLUMN `revisionDate` SET DEFAULT 0;');
+$db->write('ALTER TABLE `assetAspectMailable` ALTER COLUMN `mailStyleTemplateId` SET DEFAULT "";');
+
+$db->write('ALTER TABLE `assetAspectSubscriber` ALTER COLUMN `assetId` SET DEFAULT "";');
+$db->write('ALTER TABLE `assetAspectSubscriber` ALTER COLUMN `revisionDate` SET DEFAULT 0;');
+$db->write('ALTER TABLE `assetAspectSubscriber` ALTER COLUMN `subscriptionEnabled` SET DEFAULT 0;');
+$db->write('ALTER TABLE `assetAspectSubscriber` ALTER COLUMN `revisionDate` SET DEFAULT 0;');
+$db->write('ALTER TABLE `assetAspectSubscriber` ALTER COLUMN `revisionDate` SET DEFAULT 0;');
+
+$db->write('ALTER TABLE `assetAspectSubscriber_log` ALTER COLUMN `assetId` SET DEFAULT "";');
+$db->write('ALTER TABLE `assetAspectSubscriber_log` ALTER COLUMN `requestIp` SET DEFAULT "";');
+$db->write('ALTER TABLE `assetAspectSubscriber_log` ALTER COLUMN `userId` SET DEFAULT "";');
+$db->write('ALTER TABLE `assetAspectSubscriber_log` ALTER COLUMN `email` SET DEFAULT "";');
+$db->write('ALTER TABLE `assetAspectSubscriber_log` ALTER COLUMN `type` SET DEFAULT "";');
+$db->write('ALTER TABLE `assetAspectSubscriber_log` ALTER COLUMN `anonymous` SET DEFAULT 0;');
+
+$db->write('ALTER TABLE `Mailing` ALTER COLUMN `mailingId` SET DEFAULT "";');
+$db->write('ALTER TABLE `Mailing` ALTER COLUMN `configuration` SET DEFAULT "";');
+$db->write('ALTER TABLE `Mailing` ALTER COLUMN `assetId` SET DEFAULT "";');
+$db->write('ALTER TABLE `Mailing` ALTER COLUMN `sendDate` SET DEFAULT 0;');
+$db->write('ALTER TABLE `Mailing` ALTER COLUMN `issueId` SET DEFAULT "";');
+
+$db->write('ALTER TABLE `Mailing_email` ALTER COLUMN `mailId` SET DEFAULT "";');
+
+    print "Done.\n";
+}
+
 
 #-------------------------------------------------------------------------------
 sub addConfirmationTemplateColumn {
@@ -108,9 +144,9 @@ sub installMailableAspectTable {
 
     $session->db->write(<<EOSQL);
         create table if not exists assetAspectMailable (
-            assetId             char(22)    binary  not null,
-            revisionDate        bigint(20)          not null,
-            mailStyleTemplateId char(22)    binary  not null,
+            assetId             char(22)    binary  not null default '',
+            revisionDate        bigint(20)          not null default 0,
+            mailStyleTemplateId char(22)    binary  not null default '',
             primary key( assetId, revisionDate )
         );
 EOSQL
@@ -125,8 +161,8 @@ sub installSubscriberAspectTable {
 
     $session->db->write(<<EOSQL);
         create table if not exists assetAspectSubscriber (
-            assetId                        char(22)    binary  not null,
-            revisionDate                   bigint(20)          not null,
+            assetId                        char(22)    binary  not null default '',
+            revisionDate                   bigint(20)          not null default 0,
             subscriptionGroupId            char(22)    binary,
             subscriptionEnabled            tinyint(1)          not null default 0,
             alwaysConfirmSubscription      tinyint(1)          not null default 0,
@@ -142,16 +178,16 @@ EOSQL
 
     $session->db->write(<<EOSQL2);
         create table if not exists assetAspectSubscriber_log (
-            assetId             char(22)        binary not null,
-            requestIp           char(15)        not null,
-            requestDate         bigint(20)      not null,
+            assetId             char(22)        binary not null default '',
+            requestIp           char(15)        not null default '',
+            requestDate         bigint(20)      not null default 0,
             confirmationIp      char(15),
             confirmationDate    bigint(20),
-            userId              char(22)        binary not null,
-            email               varchar(255)    not null,
-            type                char(30)        not null,
-            anonymous           tinyint(1)      not null,
-            confirmed           tinyint(1)      default 0,
+            userId              char(22)        binary not null default '',
+            email               varchar(255)    not null default '',
+            type                char(30)        not null default '',
+            anonymous           tinyint(1)      not null default 0,
+            confirmed           tinyint(1)      not null default 0,
             code                char(22)        default null
         );
 EOSQL2
@@ -166,9 +202,9 @@ sub installNewsletterCollection {
 
     $session->db->write(<<EOSQL);
         create table if not exists NewsletterCollection (
-            assetId                     char(22)    binary  not null,
-            revisionDate                bigint(20)          not null,
-            useHoneypot                 tinyint(1)          default 0,
+            assetId                     char(22)    binary  not null default '',
+            revisionDate                bigint(20)          not null default 0,
+            useHoneypot                 tinyint(1)          not null default 0,
             primary key( assetId, revisionDate )
         );
 EOSQL
@@ -331,8 +367,8 @@ sub addSpecialStateTable {
 
     $session->db->write( <<EOSQL );
         create table if not exists users_specialState (
-            userId          char(22) binary not null,
-            specialState    char(30) not null,
+            userId          char(22) binary not null default '',
+            specialState    char(30) not null default '',
             primary key     ( userId, specialState )
         )
 EOSQL