Hello. The following information is referenced in the PrintByXerox App Quick Start Guide. SSL Certificates provide secure communication of private and sensitive information over network connections. If SSL certificate validation is disabled, the secure communication of private or sensitive information is vulnerable. Typically, it is recommended that Verify server certificates is enabled on your MFP, though this may cause issues with other application. The PrintByXerox App Quick Start Guide can be found here: http://download.support.xerox.com/pub/docs/APP_GALLERY/userdocs/any-os/en_GB/EN_PrintByXeroxApp_Quic... I hope that this information is helpful. However, if you are search for additional information, please refer to the Xerox App Gallery Online Support at http://www.support.xerox.com/support/xerox-app-gallery. Search on this topic: Multifunction Printer (MFP) Administrator Procedures With Xerox @PrintByXerox App Thank you!