diff --git a/jdav_web/mailer/admin.py b/jdav_web/mailer/admin.py
index cf44d54..312c9f2 100644
--- a/jdav_web/mailer/admin.py
+++ b/jdav_web/mailer/admin.py
@@ -30,7 +30,7 @@ class MessageAdmin(admin.ModelAdmin):
     inlines = [AttachmentInline]
     actions = ['send_message']
     form = MessageForm
-    filter_horizontal = ('to_members',)
+    filter_horizontal = ('to_members','reply_to')
 
     def send_message(self, request, queryset):
         if request.POST.get('confirmed'):
diff --git a/jdav_web/mailer/mailutils.py b/jdav_web/mailer/mailutils.py
index 14e05c4..3251316 100644
--- a/jdav_web/mailer/mailutils.py
+++ b/jdav_web/mailer/mailutils.py
@@ -7,7 +7,7 @@ NOT_SENT, SENT, PARTLY_SENT = 0, 1, 2
 HOST = os.environ.get('DJANGO_ALLOWED_HOST', 'localhost:8000').split(",")[0]
 
 
-def send(subject, content, sender, recipients, reply_to=None,
+def send(subject, content, sender, recipients, message_id, reply_to=None,
          attachments=None):
     failed, succeeded = False, False
     if type(recipients) != list:
@@ -19,7 +19,8 @@ def send(subject, content, sender, recipients, reply_to=None,
     with mail.get_connection() as connection:
         for recipient in set(recipients):
             email = EmailMessage(subject, content, sender, [recipient],
-                                 connection=connection, **kwargs)
+                                 connection=connection, **kwargs,
+                                 headers={'Message-ID': message_id})
             if attachments is not None:
                 for attach in attachments:
                     email.attach_file(attach)
diff --git a/jdav_web/mailer/management/commands/reply_addrs.py b/jdav_web/mailer/management/commands/reply_addrs.py
new file mode 100644
index 0000000..0a3f493
--- /dev/null
+++ b/jdav_web/mailer/management/commands/reply_addrs.py
@@ -0,0 +1,26 @@
+from django.core.management.base import BaseCommand
+from mailer.models import Message
+from members.models import Member
+
+
+class Command(BaseCommand):
+    help = 'Shows reply-to addresses'
+
+    def add_arguments(self, parser):
+        parser.add_argument('message_id', type=int)
+
+    def handle(self, *args, **options):
+        replies = []
+        try:
+            message = Message.objects.get(pk=options['message_id'])
+            if message.reply_to:
+                replies = message.reply_to.all()
+        except Message.DoesNotExist:
+            pass
+
+        if not replies:
+            # send mail to all jugendleiters
+            replies = Member.objects.filter(group__name='Jugendleiter',
+                                            gets_newsletter=True)
+        response = "\n".join([l.email for l in replies])
+        self.stdout.write(response)
diff --git a/jdav_web/mailer/models.py b/jdav_web/mailer/models.py
index 94276f5..3b9e103 100644
--- a/jdav_web/mailer/models.py
+++ b/jdav_web/mailer/models.py
@@ -28,11 +28,10 @@ class Message(models.Model):
     to_members = models.ManyToManyField('members.Member',
                                         verbose_name=_('to member'),
                                         blank=True)
-    reply_to = models.ForeignKey('members.Member',
-                                 verbose_name=_('reply to'),
-                                 blank=True,
-                                 null=True,
-                                 related_name='reply_to')
+    reply_to = models.ManyToManyField('members.Member',
+                                      verbose_name=_('reply to'),
+                                      blank=True,
+                                      related_name='reply_to')
     sent = models.BooleanField(_('sent'), default=False)
 
     def __str__(self):
@@ -77,8 +76,8 @@ class Message(models.Model):
             success = send(self.subject, get_content(self.content),
                            SENDING_ADDRESS,
                            emails,
-                           attachments=attach,
-                           reply_to=self.reply_to.email if self.reply_to else None)
+                           message_id=self.pk,
+                           attachments=attach)
             if success == SENT or success == PARTLY_SENT:
                 self.sent = True
             for a in Attachment.objects.filter(msg__id=self.pk):