Egnyte allows for FTP/SFTP file transfers besides using their native API. Details on their FTP/SFTP service and how to enable it can be found in the following two pages:
https://helpdesk.egnyte.com/hc/en-us/articles/201637804-FTP-SFTP-Overview
https://helpdesk.egnyte.com/hc/en-us/articles/360027637171-How-do-I-enable-FTP-or-SFTP
When configuring your SyncBack profile for the purpose of using FTP/SFTP with Egnyte you need to make sure the correct server name and username are being used. If you access Egnyte at https://mycompany.egnyte.com and your username is johndoe, then the FTP/SFTP server name should be ftp-mycompany.egnyte.com and the username should be johndoe$mycompany. Password remains the same as your Egnyte user password.
For better file transfer quality and protection we suggest using SFTP (available only with SyncBackPro).
Egnyte FAQ page:
https://helpdesk.egnyte.com/hc/en-us/articles/360022648891-FTP-SFTP-FAQs