diff --git a/addons/mass_mailing/models/mass_mailing.py b/addons/mass_mailing/models/mass_mailing.py
index b80aa43b088..17731500d3c 100644
--- a/addons/mass_mailing/models/mass_mailing.py
+++ b/addons/mass_mailing/models/mass_mailing.py
@@ -9,6 +9,7 @@ from openerp import tools
 from openerp.exceptions import Warning
 from openerp.tools.safe_eval import safe_eval as eval
 from openerp.tools.translate import _
+from openerp.tools import ustr
 from openerp.osv import osv, fields
 
 
@@ -271,7 +272,7 @@ class MassMailing(osv.Model):
         """
         date_begin = date_begin.date()
         section_result = [{'value': 0,
-                           'tooltip': (date_begin + relativedelta.relativedelta(days=i)).strftime('%d %B %Y'),
+                           'tooltip': ustr((date_begin + relativedelta.relativedelta(days=i)).strftime('%d %B %Y')),
                            } for i in range(0, self._period_number)]
         group_obj = obj.read_group(cr, uid, domain, read_fields, groupby_field, context=context)
         field_col_info = obj._all_columns.get(groupby_field.split(':')[0])
@@ -302,7 +303,7 @@ class MassMailing(osv.Model):
         return res
 
     def _get_statistics(self, cr, uid, ids, name, arg, context=None):
-        """ Compute statistics of the mass mailing campaign """
+        """ Compute statistics of the mass mailing """
         results = {}
         cr.execute("""
             SELECT
@@ -311,9 +312,9 @@ class MassMailing(osv.Model):
                 COUNT(CASE WHEN s.sent is not null THEN 1 ELSE null END) AS sent,
                 COUNT(CASE WHEN s.scheduled is not null AND s.sent is null AND s.exception is null THEN 1 ELSE null END) AS scheduled,
                 COUNT(CASE WHEN s.scheduled is not null AND s.sent is null AND s.exception is not null THEN 1 ELSE null END) AS failed,
-                COUNT(CASE WHEN s.id is not null AND s.bounced is null THEN 1 ELSE null END) AS delivered,
+                COUNT(CASE WHEN s.sent is not null AND s.bounced is null THEN 1 ELSE null END) AS delivered,
                 COUNT(CASE WHEN s.opened is not null THEN 1 ELSE null END) AS opened,
-                COUNT(CASE WHEN s.replied is not null THEN 1 ELSE null END) AS replied ,
+                COUNT(CASE WHEN s.replied is not null THEN 1 ELSE null END) AS replied,
                 COUNT(CASE WHEN s.bounced is not null THEN 1 ELSE null END) AS bounced
             FROM
                 mail_mail_statistics s
@@ -328,7 +329,6 @@ class MassMailing(osv.Model):
         for row in cr.dictfetchall():
             results[row.pop('mailing_id')] = row
             total = row['total'] or 1
-            row['delivered'] = row['sent'] - row['bounced']
             row['received_ratio'] = 100.0 * row['delivered'] / total
             row['opened_ratio'] = 100.0 * row['opened'] / total
             row['replied_ratio'] = 100.0 * row['replied'] / total
diff --git a/addons/mass_mailing/wizard/mail_compose_message.py b/addons/mass_mailing/wizard/mail_compose_message.py
index ede3fe37803..5f9bcc2deac 100644
--- a/addons/mass_mailing/wizard/mail_compose_message.py
+++ b/addons/mass_mailing/wizard/mail_compose_message.py
@@ -32,13 +32,19 @@ class MailComposeMessage(osv.TransientModel):
                 wizard.model in [item[0] for item in self.pool['mail.mass_mailing']._get_mailing_model(cr, uid, context=context)]:
             mass_mailing = wizard.mass_mailing_id
             if not mass_mailing:
+                reply_to_mode = wizard.no_auto_thread and 'email' or 'thread'
+                reply_to = wizard.no_auto_thread and wizard.reply_to or False
                 mass_mailing_id = self.pool['mail.mass_mailing'].create(
                     cr, uid, {
                         'mass_mailing_campaign_id': wizard.mass_mailing_campaign_id and wizard.mass_mailing_campaign_id.id or False,
                         'name': wizard.mass_mailing_name,
                         'template_id': wizard.template_id and wizard.template_id.id or False,
                         'state': 'done',
-                        'mailing_type': wizard.model,
+                        'reply_to_mode': reply_to_mode,
+                        'reply_to': reply_to,
+                        'sent_date': fields.datetime.now(),
+                        'body_html': wizard.body,
+                        'mailing_model': wizard.model,
                         'mailing_domain': wizard.active_domain,
                     }, context=context)
                 mass_mailing = self.pool['mail.mass_mailing'].browse(cr, uid, mass_mailing_id, context=context)