Added back the old cron ticket email parser as legacy_cront_ticket_email_parser.php and added back the old libraries php-mime-mail-parser in plugins note if you recently installed itflow within the last 2 weeks you will need to install and enable the php libraries php-imap and php-mailparse if you decide to use the legacy mailer

plugins/php-mime-mail-parser/MiddlewareStack.php

@@ -0,0 +1,89 @@
+<?php
+
+namespace PhpMimeMailParser;
+
+use PhpMimeMailParser\Contracts\MiddleWare as MiddleWareContracts;
+
+/**
+ * A stack of middleware chained together by (MiddlewareStack $next)
+ */
+class MiddlewareStack
+{
+    /**
+     * Next MiddlewareStack in chain
+     *
+     * @var MiddlewareStack
+     */
+    protected $next;
+
+    /**
+     * Middleware in this MiddlewareStack
+     *
+     * @var Middleware
+     */
+    protected $middleware;
+
+    /**
+     * Construct the first middleware in this MiddlewareStack
+     * The next middleware is chained through $MiddlewareStack->add($Middleware)
+     *
+     * @param Middleware $middleware
+     */
+    public function __construct(MiddleWareContracts $middleware = null)
+    {
+        $this->middleware = $middleware;
+    }
+
+    /**
+     * Creates a chained middleware in MiddlewareStack
+     *
+     * @param Middleware $middleware
+     * @return MiddlewareStack Immutable MiddlewareStack
+     */
+    public function add(MiddleWareContracts $middleware)
+    {
+        $stack = new static($middleware);
+        $stack->next = $this;
+        return $stack;
+    }
+
+    /**
+     * Parses the MimePart by passing it through the Middleware
+     * @param MimePart $part
+     * @return MimePart
+     */
+    public function parse(MimePart $part)
+    {
+        if (!$this->middleware) {
+            return $part;
+        }
+        $part = call_user_func(array($this->middleware, 'parse'), $part, $this->next);
+        return $part;
+    }
+
+    /**
+     * Creates a MiddlewareStack based on an array of middleware
+     *
+     * @param Middleware[] $middlewares
+     * @return MiddlewareStack
+     */
+    public static function factory(array $middlewares = array())
+    {
+        $stack = new static;
+        foreach ($middlewares as $middleware) {
+            $stack = $stack->add($middleware);
+        }
+        return $stack;
+    }
+
+    /**
+     * Allow calling MiddlewareStack instance directly to invoke parse()
+     *
+     * @param MimePart $part
+     * @return MimePart
+     */
+    public function __invoke(MimePart $part)
+    {
+        return $this->parse($part);
+    }
+}