diff --git a/Hermes.csproj b/Hermes.csproj
index 2fcdfa0..04fce3f 100644
--- a/Hermes.csproj
+++ b/Hermes.csproj
@@ -112,6 +112,9 @@
     <Compile Include="PreferencesModal.xaml.cs">
       <DependentUpon>PreferencesModal.xaml</DependentUpon>
     </Compile>
+    <Compile Include="SmsWindow.xaml.cs">
+      <DependentUpon>SmsWindow.xaml</DependentUpon>
+    </Compile>
     <Compile Include="Validation\Age.cs" />
     <Compile Include="Validation\MandatoryString.cs" />
     <Page Include="CitoyenModal.xaml">
@@ -137,6 +140,10 @@
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
     </Page>
+    <Page Include="SmsWindow.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Properties\AssemblyInfo.cs">
diff --git a/MainWindow.xaml b/MainWindow.xaml
index 69185dc..112af4c 100644
--- a/MainWindow.xaml
+++ b/MainWindow.xaml
@@ -48,7 +48,7 @@
             </MenuItem>
             <MenuItem Header="Communication">
                 <MenuItem Header="Courriel..." Click="Courriel_Click"/>
-                <MenuItem Header="SMS..."/>
+                <MenuItem Header="SMS..." Click="Sms_Click"/>
                 <MenuItem Header="Publipostage..." Click="Publipostage_Click"/>
             </MenuItem>
             <MenuItem Header="Outils">
diff --git a/MainWindow.xaml.cs b/MainWindow.xaml.cs
index 592f704..94827cb 100644
--- a/MainWindow.xaml.cs
+++ b/MainWindow.xaml.cs
@@ -14,6 +14,7 @@ namespace Hermes {
         private ModelContext dbContext = null;
         private CitoyenModal citoyenModal = new CitoyenModal();
         private PreferencesModal preferencesModal = new PreferencesModal();
+        private SmsWindow smsModal = new SmsWindow();
         private CollectionViewSource citoyenCollectionViewSource = null;
         private bool isEnabledFilter = false;
 
@@ -28,6 +29,7 @@ namespace Hermes {
         private void Window_Loaded(object sender, RoutedEventArgs e) {
             citoyenModal.Owner = this;
             preferencesModal.Owner = this;
+            smsModal.Owner = this;
             dbContext.CitoyenSet.Load();
             dbContext.Preferences.Load();
             citoyenCollectionViewSource = (CollectionViewSource) this.FindResource("citoyenCollectionViewSource");
@@ -68,17 +70,44 @@ namespace Hermes {
             }
         }
 
+        private void Sms_Click(object sender, RoutedEventArgs e) {
+            if(dgCitoyens.SelectedItems.Count > 0) {
+                MessageBoxResult result = MessageBox.Show("Voulez-vous envoyer un SMS à ces citoyens ?", "Envoi de SMS", MessageBoxButton.YesNo, MessageBoxImage.Question);
+                if(result == MessageBoxResult.Yes) {
+                    bool noTel = false;
+                    foreach(Citoyen citoyen in dgCitoyens.SelectedItems) {
+                        if(String.IsNullOrWhiteSpace(citoyen.TelPort)) {
+                            noTel = true;
+                        }
+                    }
+                    if(noTel) {
+                        MessageBox.Show("Certains des citoyens sélectionnés ne disposent pas d'un numéro de mobile", "Envoi de SMS", MessageBoxButton.OK, MessageBoxImage.Exclamation);
+                    }
+                    smsModal.ShowDialog();
+                }
+            } else {
+                MessageBox.Show("Aucun citoyen sélectionné", "Envoi de SMS", MessageBoxButton.OK, MessageBoxImage.Exclamation);
+            }
+
+        }
+
         private void Courriel_Click(object sender, RoutedEventArgs e) {
             if(dgCitoyens.SelectedItems.Count > 0) {
                 MessageBoxResult result = MessageBox.Show("Voulez-vous envoyer un courriel à ces citoyens ?", "Envoi de courriel", MessageBoxButton.YesNo, MessageBoxImage.Question);
                 if(result == MessageBoxResult.Yes) {
+                    bool noMail = false;
                     List<string> mails = new List<string>();
                     foreach(Citoyen citoyen in dgCitoyens.SelectedItems) {
                         if(!String.IsNullOrWhiteSpace(citoyen.Mail)) {
-                            mails.Add(citoyen.Mail); 
+                            mails.Add(citoyen.Mail);
+                        } else {
+                            noMail = true;
                         }
                     }
                     if(mails.Count > 0) {
+                        if(noMail) {
+                            MessageBox.Show("Certains des citoyens sélectionnés ne disposent pas d'une adresse E-Mail", "Envoi de courriel", MessageBoxButton.OK, MessageBoxImage.Exclamation);
+                        }
                         Microsoft.Office.Interop.Outlook.Application app = new Microsoft.Office.Interop.Outlook.Application();
                         Microsoft.Office.Interop.Outlook.MailItem mailItem = app.CreateItem(Microsoft.Office.Interop.Outlook.OlItemType.olMailItem);
                         foreach(string mail in mails) {
@@ -93,7 +122,7 @@ namespace Hermes {
                     }
                 }
             } else {
-                MessageBox.Show("Aucun citoyen sélectionné", "Suppression", MessageBoxButton.OK, MessageBoxImage.Exclamation);
+                MessageBox.Show("Aucun citoyen sélectionné", "Envoi de courriel", MessageBoxButton.OK, MessageBoxImage.Exclamation);
             }
         }
 
diff --git a/SmsWindow.xaml b/SmsWindow.xaml
new file mode 100644
index 0000000..f06b7e7
--- /dev/null
+++ b/SmsWindow.xaml
@@ -0,0 +1,23 @@
+<Window x:Class="Hermes.SmsWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:Hermes"
+        mc:Ignorable="d"
+        ResizeMode="NoResize"
+        Title="Envoi de SMS" Height="370" Width="500"
+        WindowStartupLocation="CenterOwner"
+        Closing="Window_Closing">
+    <Grid Background="WhiteSmoke">
+        <Grid.RowDefinitions>
+            <RowDefinition Height="290"/>
+            <RowDefinition Height="*"/>
+        </Grid.RowDefinitions>
+        <RichTextBox Margin="5" Grid.Row="0" FontSize="15" Block.LineHeight="2" VerticalScrollBarVisibility="Visible"/>
+        <WrapPanel Grid.Row="1" Margin="0,0,5,0" HorizontalAlignment="Right" VerticalAlignment="Center">
+            <Button Margin="0,0,10,0" Height="25" Width="100" IsDefault="True" Click="Envoyer_Click">Envoyer</Button>
+            <Button Height="25" Width="100" Click="Annuler_Click">Annuler</Button>
+        </WrapPanel>
+    </Grid>
+</Window>
diff --git a/SmsWindow.xaml.cs b/SmsWindow.xaml.cs
new file mode 100644
index 0000000..61a93e1
--- /dev/null
+++ b/SmsWindow.xaml.cs
@@ -0,0 +1,23 @@
+using System.Windows;
+
+
+namespace Hermes {
+    public partial class SmsWindow : Window {
+        public SmsWindow() {
+            InitializeComponent();
+        }
+
+        private void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e) {
+            e.Cancel = true;
+            this.Hide();
+        }
+
+        public void Envoyer_Click(object sender, RoutedEventArgs e) {
+            MessageBox.Show("Erreur lors de la tentative d'envoi : Clé IsendPro invalide", "Envoi de SMS", MessageBoxButton.OK, MessageBoxImage.Error);
+        }
+
+        public void Annuler_Click(object sender, RoutedEventArgs e) {
+            Close();
+        }
+    }
+}