For more information, please visit the following pages:

• Postbox
• Windows Desktop
• Postbox, Inc.
• Gecko

Latest user agents:

• Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 PostboxApp/7.0.5.2
• Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 PostboxApp/7.0.21