Unable to send any external emails from Exchange 2013

Hi Dear.

I have done fresh installation of Exchange server 2013, I have created send connector. But I am unable to send any external emails. My email ID is ramiz@resemblesystems.com

I am getting delivery failure message as below..

Received: from MAIL1.alreeda.local (192.168.20.110) by mail1.alreeda.local
 (192.168.20.110) with Microsoft SMTP Server (TLS) id 15.0.516.32; Wed, 8 Apr
 2015 18:16:14 +0400
Received: from MAIL1.alreeda.local ([fe80::1daa:cf21:cd66:2cbc]) by
 mail1.alreeda.local ([fe80::1daa:cf21:cd66:2cbc%12]) with mapi id
 15.00.0516.029; Wed, 8 Apr 2015 18:16:14 +0400
From: Sidharth Somadutt <sidharth@tadreesholding.com>
To: "gazi.ramiz@gmail.com" <gazi.ramiz@gmail.com>
Subject: 123332
Thread-Topic: 123332
Thread-Index: AQHQcgaS325wwSIJ8UmxfWNeEBadNw==
Date: Wed, 8 Apr 2015 14:16:14 +0000
Message-ID: <e7abc0108c0f4d6a918bb985c3860b0e@mail1.alreeda.local>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
x-originating-ip: [192.168.20.106]
Content-Type: multipart/alternative;
        boundary="_000_e7abc0108c0f4d6a918bb985c3860b0email1alreedalocal_"
MIME-Version: 1.0
Please help me..