diff --git a/app/Filament/Resources/MailAdressens/Schemas/MailAdressenForm.php b/app/Filament/Resources/MailAdressens/Schemas/MailAdressenForm.php
index cba5e5f..b95ae49 100644
--- a/app/Filament/Resources/MailAdressens/Schemas/MailAdressenForm.php
+++ b/app/Filament/Resources/MailAdressens/Schemas/MailAdressenForm.php
@@ -26,6 +26,10 @@ class MailAdressenForm
                         TextInput::make('email')
                             ->prefixIcon(Heroicon::OutlinedEnvelope)
                             ->required(),
+                        Select::make('mail_gruppen_id')
+                            ->required()
+                            ->label('Mail Gruppe')
+                            ->relationship(name: 'mail_gruppen', titleAttribute: 'name'),
                         Toggle::make('im_newsletter')->label('Im Newsletter'),
                     ]),
                 Section::make('Persönliche Anrede')
@@ -33,6 +37,7 @@ class MailAdressenForm
                     ->columnSpanFull()
                     ->schema([
                         Select::make('gender')
+                            ->required()
                             ->label('Geschlecht')
                             ->options([
                                 '0' => 'Herr',
diff --git a/app/Models/MailAdressen.php b/app/Models/MailAdressen.php
index d4c786b..0d516a8 100644
--- a/app/Models/MailAdressen.php
+++ b/app/Models/MailAdressen.php
@@ -19,4 +19,9 @@ class MailAdressen extends Model
         'vereidigung',
         'im_newsletter',
     ];
+
+    public function mail_gruppen()
+    {
+        return $this->belongsTo(MailGruppen::class);
+    }
 }