Here is the log:
OS: Linux kinitstudio.com 3.8.0-29-generic #42~precise1-Ubuntu SMP Wed Aug 14 15:31:16 UTC 2013 i686
Platform: PHP Linux 5.3.10-1ubuntu3.15 / WordPress 4.1.1
PHP Dependencies : iconv=Yes : spl_autoload=Yes : openssl=Yes : allow_url_fopen=Yes
WordPress Plugins : Contact Form 7 : Disqus Comment System : Disqus Recent Comments Widget : Duplicate Post : Envato WordPress Toolkit : WordPress Plugin Boilerplate : WPBakery Visual Composer : Postman SMTP : Revolution Slider : W3 Total Cache : WooCommerce Admin Bar Addition : WooCommerce Header Category Image : WooCommerce JNE Shipping ( Full Version ) : WooCommerce
Postman Version: 1.5.8
Postman Sender: ab************ia@gmail.com
Postman Transport URI: smtp:ssl:oauth2://6172****************************************************************.com:************************@smtp.gmail.com:465
Postman Transport Status (configured|ready|connected): Yes|Yes|Yes
Postman Deliveries (Success|Fail): 19|0
Postman Bind (success|failure): Yes|No
Postman Available Transports : SMTP (1.5.8)
Postman LogLevel: 40000
Postman TCP Timeout (Connection|Read): 10|60
HTTP User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:36.0) Gecko/20100101 Firefox/36.0