diff --git a/smtp.php b/smtp.php
index fea5465..9757c4d 100644
--- a/smtp.php
+++ b/smtp.php
@@ -25,7 +25,7 @@ class smtp
     * answer in this time, an exception is raised */
   public $timeout = 10;
   /** Activate STARTTLS if needed. Allowed values : none, may, encrypt*/
-  public $starttls = "may";
+  public $starttls = "none";
   /** The authentication methods in an array. Allowed : plain, login*/
   public $authmethods = array ("plain", "login");
   /** The socket of the connection */
@@ -36,7 +36,8 @@ class smtp
   {
     if ($this->ssl)
       $this->server = "tls://$this->server";
-    $this->debug ("####SMTP Connection to $this->server:$this->port\n");
+    $this->debug ("####SMTP Connection to $this->server:$this->port (".
+                  date ("Y/m/d H:i:s").")\n");
     $this->smtpStream = @fsockopen ($this->server, $this->port,
                                     $errno, $errstr,
                                     $this->timeout);
@@ -55,8 +56,16 @@ class smtp
       if ($this->starttls === "may" || $this->starttls === "encrypt")
       {
         $this->putLine ("STARTTLS\r\n");
-        stream_socket_enable_crypto ($this->smtpStream, true,
-                                     STREAM_CRYPTO_METHOD_TLS_CLIENT);
+        // The track_errors permit to create the $php_errormsg in case of
+        // warning
+        ini_set('track_errors', 1); 
+        if (@stream_socket_enable_crypto ($this->smtpStream, true,
+                                         STREAM_CRYPTO_METHOD_TLS_CLIENT) ===
+            false)
+          throw new \Exception (sprintf (_("Can't activate STARTTLS : %s"),
+                                $php_errormsg), 500);
+        ini_set('track_errors', 0);
+        $this->debug ("STARTTLS ACTIVATED\n");
       }
     }
     elseif ($this->starttls === "encrypt")
@@ -149,6 +158,8 @@ class smtp
     while (1)
     {
       $line = stream_get_line ($this->smtpStream, 1024, "\r\n");
+      if ($line === false)
+        break;
       $meta = stream_get_meta_data ($this->smtpStream);
       if ($meta["timed_out"] !== FALSE)
       {