diff --git a/src/Core/Connection.php b/src/Core/Connection.php
index cd51944..08bd554 100644
--- a/src/Core/Connection.php
+++ b/src/Core/Connection.php
@@ -5,7 +5,7 @@
 
 namespace Clivern\Imap\Core;
 
-use Clivern\Imap\Core\Exception\ConnectionError;
+use Clivern\Imap\Core\Exception\AuthenticationFailedException;
 
 /**
  * Connection Class
@@ -85,14 +85,14 @@ class Connection
      * Connect to IMAP Email
      *
      * @return Connection
-     * @throws ConnectionError
+     * @throws AuthenticationFailedException
      */
     public function connect()
     {
         try {
             $this->stream = imap_open("{" . $this->server . ":" . $this->port . $this->flag . "}" . $this->folder, $this->email, $this->password);
         } catch (\Exception $e) {
-            throw new ConnectionError("Error! Connecting to Imap Email.");
+            throw new AuthenticationFailedException("Error! Connecting to Imap Email.");
         }
 
         return $this;
@@ -103,7 +103,7 @@ class Connection
         try {
             imap_reopen($this->stream, "{" . $this->server . ":" . $this->port . $this->flag . "}" . $folder);
         } catch (\Exception $e) {
-            throw new ConnectionError("Error! Connecting to Imap Email.");
+            throw new AuthenticationFailedException("Error! Connecting to Imap Email.");
         }
     }
 
diff --git a/src/Core/Exception/AuthenticationFailedException.php b/src/Core/Exception/AuthenticationFailedException.php
new file mode 100644
index 0000000..125f41d
--- /dev/null
+++ b/src/Core/Exception/AuthenticationFailedException.php
@@ -0,0 +1,28 @@
+<?php
+/**
+ * @author clivern <hello@clivern.com>
+ */
+
+namespace Clivern\Imap\Core\Exception;
+
+/**
+ * Connection Error Class
+ *
+ * @package Clivern\Imap\Core\Exception
+ */
+class AuthenticationFailedException extends \Exception
+{
+
+    public function __construct($error = null)
+    {
+        parent::__construct(
+            sprintf(
+                "Authentication failed with error: %s",
+                $server,
+                $port,
+                $email,
+                $error
+            )
+        );
+    }
+}
\ No newline at end of file
diff --git a/src/Core/Exception/ConnectionError.php b/src/Core/Exception/ConnectionError.php
deleted file mode 100644
index 4e212d2..0000000
--- a/src/Core/Exception/ConnectionError.php
+++ /dev/null
@@ -1,13 +0,0 @@
-<?php
-/**
- * @author clivern <hello@clivern.com>
- */
-
-namespace Clivern\Imap\Core\Exception;
-
-/**
- * Connection Error Class
- *
- * @package Clivern\Imap\Core\Exception
- */
-class ConnectionError extends \Exception{}
diff --git a/src/Core/Exception/MessageDeleteException.php b/src/Core/Exception/MessageDeleteException.php
new file mode 100644
index 0000000..2c54f87
--- /dev/null
+++ b/src/Core/Exception/MessageDeleteException.php
@@ -0,0 +1,25 @@
+<?php
+/**
+ * @author clivern <hello@clivern.com>
+ */
+
+namespace Clivern\Imap\Core\Exception;
+
+/**
+ * Connection Error Class
+ *
+ * @package Clivern\Imap\Core\Exception
+ */
+class MessageDeleteException extends \Exception
+{
+
+    /**
+     * Class Constructor
+     *
+     * @param integer $message_number
+     */
+    public function __construct($message_number)
+    {
+        parent::__construct(sprintf('Message %s cannot be deleted', $message_number));
+    }
+}
\ No newline at end of file
diff --git a/src/Core/Exception/MessageDoesNotExistException.php b/src/Core/Exception/MessageDoesNotExistException.php
new file mode 100644
index 0000000..f16074b
--- /dev/null
+++ b/src/Core/Exception/MessageDoesNotExistException.php
@@ -0,0 +1,25 @@
+<?php
+/**
+ * @author clivern <hello@clivern.com>
+ */
+
+namespace Clivern\Imap\Core\Exception;
+
+/**
+ * Connection Error Class
+ *
+ * @package Clivern\Imap\Core\Exception
+ */
+class MessageDoesNotExistException extends \Exception
+{
+    /**
+     * Class Constructor
+     *
+     * @param integer $number
+     * @param string $error
+     */
+    public function __construct($number, $error)
+    {
+        parent::__construct(sprintf('Message %s does not exist: %s', $number, $error));
+    }
+}
\ No newline at end of file
diff --git a/src/Core/Exception/MessageMoveException.php b/src/Core/Exception/MessageMoveException.php
new file mode 100644
index 0000000..2584632
--- /dev/null
+++ b/src/Core/Exception/MessageMoveException.php
@@ -0,0 +1,26 @@
+<?php
+/**
+ * @author clivern <hello@clivern.com>
+ */
+
+namespace Clivern\Imap\Core\Exception;
+
+/**
+ * Connection Error Class
+ *
+ * @package Clivern\Imap\Core\Exception
+ */
+class MessageMoveException extends \Exception
+{
+
+    /**
+     * Class Constructor
+     *
+     * @param integer $message_number
+     * @param string $mailbox
+     */
+    public function __construct($message_number, $mailbox)
+    {
+        parent::__construct(sprintf('Message %s cannot be moved to %s', $message_number, $mailbox));
+    }
+}
\ No newline at end of file