Bind Error 10049 When Attempting to Start Service The following error is seen in the Event Viewer when trying to start a MailSite service: Function "bind(110)" failed with error: 10049 (0x00002741) This can occur if the service is bound to an IP address that does not exist on the server. From the MailSite console, locate the Service, Right Click and select 'Port'. Examine the IP address listed in the box. Ensure that IP exists on the server.