diff --git a/README.md b/README.md
index dcce1bb..2e340d4 100644
--- a/README.md
+++ b/README.md
@@ -7,6 +7,8 @@ Follow the above steps to add a new card from email.
 * In this tutorial email address for Deck Bot will be: <code>bot@ncserver.com</code>
 
 ## 1) Assign Deck Bot to the board.
+Deck Bot must be assigned and must have edit permission inside the board.
+
 ## 2) Mail subject & content
 Let's assume you want to add a card with title "Update website logo" on board "Website" and stack "To do".
 You can do this in two ways.
diff --git a/index.php b/index.php
index 5c75eab..c2defc8 100644
--- a/index.php
+++ b/index.php
@@ -79,8 +79,7 @@ if ($emails)
         $newcard = new DeckClass();
         $response = $newcard->addCard($data, $mailSender, $board);
         $mailSender->userId .= "@{$overview->from[0]->host}";
-        if($response && ASSIGN_SENDER) {
-            $inbox->reply($mailSender->userId, $response);
-        }
+
+        ($response) ? $inbox->reply($mailSender->userId, $response) : $inbox->reply($mailSender->userId);
     }
 ?>
diff --git a/lib/DeckClass.php b/lib/DeckClass.php
index 6d38f6a..6b148cd 100644
--- a/lib/DeckClass.php
+++ b/lib/DeckClass.php
@@ -49,6 +49,9 @@ class DeckClass {
         $boards = $this->apiCall("GET", NC_SERVER . "/index.php/apps/deck/api/v1.0/boards");
         foreach($boards as $board) {
             if(strtolower($board->title) == strtolower($boardFromMail)) {
+                if(!$this->checkBotPermissions($board)) {
+                    return false;
+                }
                 $boardId = $board->id;
                 $boardName = $board->title;
             }
@@ -58,6 +61,8 @@ class DeckClass {
             $stacks = $this->apiCall("GET", NC_SERVER . "/index.php/apps/deck/api/v1.0/boards/$boardId/stacks");
             foreach($stacks as $stack)
                 (strtolower($stack->title) == strtolower($stackFromMail)) ? $stackId = $stack->id : $stackId = $stacks[0]->id;
+        } else {
+            return false;
         }
 
         $boardStack = new stdClass();
@@ -71,20 +76,23 @@ class DeckClass {
 
     public function addCard($data, $user, $board = null) {
         $params = $this->getParameters($data->title, $board);
-        $data->title = $params->newTitle;
-        $card = $this->apiCall("POST", NC_SERVER . "/index.php/apps/deck/api/v1.0/boards/{$params->board}/stacks/{$params->stack}/cards", $data);
-        $card->board = $params->board;
-        $card->stack = $params->stack;
 
-        if($this->responseCode == 200) {
-            if(ASSIGN_SENDER) $this->assignUser($card, $user);
-            if($data->attachments) $this->addAttachments($card, $data->attachments);
-            $card->boardTitle = $params->boardTitle;
-        } else {
-            return false;
+        if($params) {
+            $data->title = $params->newTitle;
+            $card = $this->apiCall("POST", NC_SERVER . "/index.php/apps/deck/api/v1.0/boards/{$params->board}/stacks/{$params->stack}/cards", $data);
+            $card->board = $params->board;
+            $card->stack = $params->stack;
+    
+            if($this->responseCode == 200) {
+                if(ASSIGN_SENDER) $this->assignUser($card, $user);
+                if($data->attachments) $this->addAttachments($card, $data->attachments);
+                $card->boardTitle = $params->boardTitle;
+            } else {
+                return false;
+            }
+            return $card;
         }
-
-        return $card;
+        return false;
     }
 
     private function addAttachments($card, $attachments) {
@@ -111,5 +119,13 @@ class DeckClass {
             }
         }
     }
+
+    private function checkBotPermissions($board) {
+        foreach($board->acl as $acl)
+            if($acl->participant->uid == NC_USER && $acl->permissionEdit)
+                return true;
+
+        return false;
+    }
 }
 ?>
diff --git a/lib/MailClass.php b/lib/MailClass.php
index 562fc3a..98e11e6 100644
--- a/lib/MailClass.php
+++ b/lib/MailClass.php
@@ -30,7 +30,7 @@ class MailClass {
         return imap_headerinfo($this->inbox, $email);
     }
 
-    public function reply($sender, $response) {
+    public function reply($sender, $response = null) {
         $serverName = parse_url(NC_SERVER);
 
         $headers = array(
@@ -39,14 +39,19 @@ class MailClass {
             'Content-Type' => 'text/html'
         );
 
+        if($response) {
+            $body = "<h1>You created a new issue on board {$response->boardTitle}.</h1><p>Check out this <a href=\"" . NC_SERVER . "/index.php/apps/deck/#/board/{$response->board}/card/{$response->id}" . "\">link</a> to see your newly created card.</p>";
+            $subject = 'An issue has been reported!';
+        } else {
+            $body = "<h1>There was a problem creating your new card.</h1><p>Make sure you set up the board correctly.</p>";
+            $subject = "Your issue has not been reported!";
+        }
+
         $message = "<html>";
-        $message .= "<head><title>You created a new issue on board {$response->boardTitle}.</title></head>";
-        $message .= "<body>";
-        $message .= "<h1>You created a new issue on board {$response->boardTitle}.</h1>";
-        $message .= "<p>Check out this <a href=\"" . NC_SERVER . "/index.php/apps/deck/#/board/{$response->board}/card/{$response->id}" . "\">link</a> to see your newly created card.</p>";
-        $message .= "</body>";
+        $message .= "<head><title>Mail2Deck response</title></head>";
+        $message .= "<body>$body</body>";
         $message .= "</html>";
 
-        mail($sender, 'An issue has been reported!', $message, $headers);
+        mail($sender, $subject, $message, $headers);
     }
 }