diff --git a/src/module_gtf/module/lang/lang-en.json b/src/module_gtf/module/lang/lang-en.json
index 7adda04952dd6356c25f9ca9375ebcceea502047..7f928e10975ceda9541d19a5a76e14917e55f9ca 100755
--- a/src/module_gtf/module/lang/lang-en.json
+++ b/src/module_gtf/module/lang/lang-en.json
@@ -433,6 +433,7 @@
         "SEND_MAIL_SUCCESS_CONFIGURATION_CONFIGURATION_GTF_LICENSE" : "Mail sent successfully",
         "LICENSE_FILE_INSTALL_ERROR_CONFIGURATION_CONFIGURATION_GTF_LICENSE" : "Error while installing the license file.",
         "LICENSE_FILE_INSTALL_SUCCESS_CONFIGURATION_CONFIGURATION_GTF_LICENSE" : "License file successfully installed",
+        "SMTP_SERVER_PARAMETERS_CONFIGURATION_CONFIGURATION_GTF_LICENSE" : "Please enter the settings of your SMTP server",
         "" : "",
         "FORM_NAME_ENGINE_GTF_ENGINE" : "Name",
         "FORM_SERVER_ENGINE_GTF_ENGINE" : "Server",
@@ -502,4 +503,4 @@
         "FORM_WIDGET_NOTIFICATIONS_OPTIONAL_PUBLICATION_WORKSPACE_EDIT_WIDGET" : "Email (Optional)",
         "EXPIRED_WIDGET_TOKEN_ERROR_TITLE": "Session timed out",
         "INVALID_WIDGET_TOKEN_ERROR_TITLE": "Invalid Session"
-}
\ No newline at end of file
+}
diff --git a/src/module_gtf/module/lang/lang-fr.json b/src/module_gtf/module/lang/lang-fr.json
index 2073cf66c3c2813e6750a39e9276b3b1e269c153..9af2c0a10e8901beb9a6f8aeaec2f5c137c959cf 100755
--- a/src/module_gtf/module/lang/lang-fr.json
+++ b/src/module_gtf/module/lang/lang-fr.json
@@ -386,7 +386,7 @@
         "FORM_GTF_SCHEMA_CONFIGURATION_CONFIGURATION_GTF_CONFIG" : "Schéma de GTF",
         "FORM_GTF_HOME_CONFIGURATION_CONFIGURATION_GTF_CONFIG" : "Répertoire de GTF",
         "FORM_NOT_COMPRESSED_EXTENSION_CONFIGURATION_CONFIGURATION_GTF_CONFIG" : "Extensions des fichiers à ne pas compresser",
-        
+
         "FORM_NBR_ORDER_MAX_CONFIGURATION_CONFIGURATION_GTF_CONFIG" : "Nombre maximum de demandes traitées simultanément",
         "FORM_MAX_ATTEMPT_CONFIGURATION_CONFIGURATION_GTF_CONFIG" : "Nombre maximum de tentatives",
         "FORM_RADIO_TRUE_CONFIGURATION_CONFIGURATION_GTF_CONFIG" : "Oui",
@@ -434,6 +434,7 @@
         "SEND_MAIL_SUCCESS_CONFIGURATION_CONFIGURATION_GTF_LICENSE" : "Mail envoyé avec succés",
         "LICENSE_FILE_INSTALL_ERROR_CONFIGURATION_CONFIGURATION_GTF_LICENSE" : "Erreur pendant l'installation du fichier de licence.",
         "LICENSE_FILE_INSTALL_SUCCESS_CONFIGURATION_CONFIGURATION_GTF_LICENSE" : "Fichier de licence installé avec succés",
+        "SMTP_SERVER_PARAMETERS_CONFIGURATION_CONFIGURATION_GTF_LICENSE" : "Veuillez renseigner les paramètres de votre serveur SMTP.",
         "" : "",
         "FORM_NAME_ENGINE_GTF_ENGINE" : "Nom",
         "FORM_SERVER_ENGINE_GTF_ENGINE" : "Serveur",
diff --git a/src/module_gtf/web_service/ws/License.class.inc b/src/module_gtf/web_service/ws/License.class.inc
index 8f1e63df69d834a2b084cc1fbf2f2c35053dd714..68da1fe21f2f66664e0b02be145002c5f23ac2d0 100755
--- a/src/module_gtf/web_service/ws/License.class.inc
+++ b/src/module_gtf/web_service/ws/License.class.inc
@@ -170,64 +170,84 @@ class License extends GTF {
                 }
             }
         } else if ($this->aValues["action"] == 'ask') {
-            $mail = new PHPMailer;
-
-            $mail->isSMTP();                                                // Set mailer to use SMTP
-            //$mail->SMTPDebug = 3;                                         // debugger level (3 all with connection)
-            $mail->Debugoutput = function($str, $level) {error_log("debug level $level; message: $str");};
-            $mail->Host = $this->aProperties["smtp_host"];                  // Specify main and backup SMTP servers
-            $mail->Port = $this->aProperties["smtp_port"];                  // TCP port to connect to
-            $mail->SMTPAuth = $this->aProperties["smtp_authentification"];  // Enable SMTP authentication
-            // if authentication add parameter to connect SMTP
-            if ($this->aProperties["smtp_authentification"] === true){
-                $mail->AuthType = 'LOGIN';
-                $mail->Username = $this->aProperties["smtp_login"];             // SMTP username
-                $mail->Password = $this->aProperties["smtp_password"];          // SMTP password
-                $mail->SMTPSecure = 'tls';                                      // Enable TLS encryption, `ssl` also accepted (deprecated)
-            } 
-            $sTo = 'codes@veremes.com';
-            $mail->AddAddress($sTo);
-            $mail->SetFrom($this->aProperties['mail_sender'], $this->aProperties['nickname_sender']);
-            $mail->AddReplyTo($this->aValues['reply_to']);
-            $mail->IsHTML(true);                                            // Set email format to HTML
-            $mail->CharSet = 'UTF-8';
-            $mail->Subject = $this->aValues['subject'] . $this->aValues['license_number'];
-            $mail->Body = /*utf8_decode*/('<html><body>' . $this->aValues['message'] . '</body></html>');
-            $mail->AddCC($this->aValues['reply_to']);
-            
-            // Depuis PHP 5.6 -> vérification du certificat SSL.
-            if (!$this->aProperties['proxy_check_ssl']) {
-                $mail->SMTPOptions = array(
-                    'ssl' => array(
-                        'verify_peer' => false,
-                        'verify_peer_name' => false,
-                        'allow_self_signed' => true
-                    )
-                );
+            // Vérification des paramètres du serveur smtp (vides ou par défaut -> erreur).
+            $aSmtpDefault = array(
+                'smtp_host' => 'smtp.domaine.com',
+                'smtp_port' => 26,
+                'smtp_authentification' => true,
+                'smtp_login' => 'login@domaine.com',
+                'smtp_password' => 'password'
+            );
+            $iSmtpCount = 0;
+            foreach ($aSmtpDefault as $sSmtpKey => $sSmtpValue) {
+                if (empty($this->aProperties[$sSmtpKey]) || $this->aProperties[$sSmtpKey] == $sSmtpValue)
+                    $iSmtpCount++;
             }
-            
-            //
-            if (!$mail->send()) {
-                writeToErrorLog(ERROR_0023 . $sTo . '.');
-                writeToErrorLog("Error message : " . $mail->ErrorInfo);
-                writeToLog("|WARN|PHP|Failed sending email to the following address : " . $sTo . ' and copy to : ' . $this->aValues['reply_to'], $this->aProperties['mail_log_file']);
-                $oError = new VitisError(1, 'SEND_MAIL_ERROR_CONFIGURATION_CONFIGURATION_GTF_LICENSE');
+            if ($iSmtpCount == count($aSmtpDefault)) {
+                writeToErrorLog('the SMTP server is not configured');
+                $oError = new VitisError(1, 'SMTP_SERVER_PARAMETERS_CONFIGURATION_CONFIGURATION_GTF_LICENSE');
                 $aXmlRacineAttribute['status'] = 0;
                 $sMessage = $oError->asDocument('', 'vitis', $this->aValues['sEncoding'], True, $aXmlRacineAttribute, $this->aValues['sSourceEncoding'], $this->aValues['output']);
-                    //$sErrorMessage = $sMail->getMessage();
-            } else {
-                writeToLog("|INFORM|PHP| An email has been sent to the following address : " . $sTo . ' and copy to : ' . $this->aValues['reply_to'], $this->aProperties['mail_log_file']);
-                if(!empty($this->aProperties['SaveSentMail']) && $this->aProperties['SaveSentMail'] === true){
-                    $imap = new Imap($this->aProperties['imapBotSender_host'], $this->aProperties['imapBotSender_port'], $this->aProperties['imapBotSender_login'], $this->aProperties['imapBotSender_pwd'], $this->aProperties['imapBotSender_encrypt']);
-                    if($imap->isConnected()===false)
-                        writeToLog("|WARN|PHP| can't connect to the IMAP at hostname : " . $this->aProperties['imapBotSender_host'], $this->aProperties['mail_log_file']);
-                    else{
-                        $imap->selectFolder("Sent");
-                        $imap->saveMessageInSent($mail->getSentMIMEMessage(), "");
+            }
+            else {
+                $mail = new PHPMailer;
+                $mail->isSMTP();                                                // Set mailer to use SMTP
+                //$mail->SMTPDebug = 3;                                         // debugger level (3 all with connection)
+                $mail->Debugoutput = function($str, $level) {error_log("debug level $level; message: $str");};
+                $mail->Host = $this->aProperties["smtp_host"];                  // Specify main and backup SMTP servers
+                $mail->Port = $this->aProperties["smtp_port"];                  // TCP port to connect to
+                $mail->SMTPAuth = $this->aProperties["smtp_authentification"];  // Enable SMTP authentication
+                // if authentication add parameter to connect SMTP
+                if ($this->aProperties["smtp_authentification"] === true){
+                    $mail->AuthType = 'LOGIN';
+                    $mail->Username = $this->aProperties["smtp_login"];             // SMTP username
+                    $mail->Password = $this->aProperties["smtp_password"];          // SMTP password
+                    $mail->SMTPSecure = 'tls';                                      // Enable TLS encryption, `ssl` also accepted (deprecated)
+                }
+                $sTo = 'codes@veremes.com';
+                $mail->AddAddress($sTo);
+                $mail->SetFrom($this->aProperties['mail_sender'], $this->aProperties['nickname_sender']);
+                $mail->AddReplyTo($this->aValues['reply_to']);
+                $mail->IsHTML(true);                                            // Set email format to HTML
+                $mail->CharSet = 'UTF-8';
+                $mail->Subject = $this->aValues['subject'] . $this->aValues['license_number'];
+                $mail->Body = /*utf8_decode*/('<html><body>' . $this->aValues['message'] . '</body></html>');
+                $mail->AddCC($this->aValues['reply_to']);
+
+                // Depuis PHP 5.6 -> vérification du certificat SSL.
+                if (!$this->aProperties['proxy_check_ssl']) {
+                    $mail->SMTPOptions = array(
+                        'ssl' => array(
+                            'verify_peer' => false,
+                            'verify_peer_name' => false,
+                            'allow_self_signed' => true
+                        )
+                    );
+                }
+
+                //
+                if (!$mail->send()) {
+                    writeToErrorLog(ERROR_0023 . $sTo . '.');
+                    writeToErrorLog("Error message : " . $mail->ErrorInfo);
+                    writeToLog("|WARN|PHP|Failed sending email to the following address : " . $sTo . ' and copy to : ' . $this->aValues['reply_to'], $this->aProperties['mail_log_file']);
+                    $oError = new VitisError(1, 'SEND_MAIL_ERROR_CONFIGURATION_CONFIGURATION_GTF_LICENSE');
+                    $aXmlRacineAttribute['status'] = 0;
+                    $sMessage = $oError->asDocument('', 'vitis', $this->aValues['sEncoding'], True, $aXmlRacineAttribute, $this->aValues['sSourceEncoding'], $this->aValues['output']);
+                        //$sErrorMessage = $sMail->getMessage();
+                    } else {
+                    writeToLog("|INFORM|PHP| An email has been sent to the following address : " . $sTo . ' and copy to : ' . $this->aValues['reply_to'], $this->aProperties['mail_log_file']);
+                    if(!empty($this->aProperties['SaveSentMail']) && $this->aProperties['SaveSentMail'] === true){
+                        $imap = new Imap($this->aProperties['imapBotSender_host'], $this->aProperties['imapBotSender_port'], $this->aProperties['imapBotSender_login'], $this->aProperties['imapBotSender_pwd'], $this->aProperties['imapBotSender_encrypt']);
+                        if($imap->isConnected()===false)
+                            writeToLog("|WARN|PHP| can't connect to the IMAP at hostname : " . $this->aProperties['imapBotSender_host'], $this->aProperties['mail_log_file']);
+                          else{
+                            $imap->selectFolder("Sent");
+                            $imap->saveMessageInSent($mail->getSentMIMEMessage(), "");
+                        }
                     }
+                    $aXmlRacineAttribute['status'] = 1;
+                    $sMessage = $this->asDocument('', 'vitis', $this->aValues['sEncoding'], True, $aXmlRacineAttribute, $this->aValues['sSourceEncoding'], $this->aValues['output']);
                 }
-                $aXmlRacineAttribute['status'] = 1;
-                $sMessage = $this->asDocument('', 'vitis', $this->aValues['sEncoding'], True, $aXmlRacineAttribute, $this->aValues['sSourceEncoding'], $this->aValues['output']);
             }
         }
         return $sMessage;
@@ -235,4 +255,4 @@ class License extends GTF {
 
 }
 
-?>
\ No newline at end of file
+?>