Domain Miscellaneous Settings.

Enable FXP
Activate, deactivate file transfer from server to server.
Enable FTP command 'OPTS UTF8 ON'
Default is enabled. You can disable it to improve unicode compatibility when doing FTP using windows explorer.
Enable generating Web Link
When enabled, then user could generate Web Link for file sharing. You can also set the maximum download speed for Web Link downloading.
Auto-forwarding listener ports to router
When enabled, the server automatically configures listener ports forward in your UPnP-enabled network device (usually a router) so that the server is accessible from outside your network. This option only forwards your listener ports. There is an option for passive ports forwarding in "FTP Pasv Mode" page.
File timestamp using GMT time
When enabled, file listing uses GMT timestamp. If not checked, the local time will be used instead.
Customized Logo
You can specify a customized logo to be displayed on the login and Web Client pages, only for this domain.
Transfer buffer size
Transfer buffer size used to transfer data (default is 16 KB). You can increase this value if you want the server to read/write less often from/to the hard drive when clients transfer.
SSL Certificate
Select an SSL Certificate for this domain.You can manage your SSL Certificate in "Server->Settings->SSL Certificate Manager" page. SSL Certificates are used for encrypting data exchanges between the client and the server. Without certificates you can not use SSL connections(FTPS and HTTPS)
SSH Key
Select an SSH Key for this domain.You can manage your SSH Key in "Server->Settings->SSH Key Manager" page. SSH key is used for SSH FTP connections
SMTP Configuration
Select an SMTP Server for this domain.You can manage your SMTP Server in "Server->Settings->SMTP Manager" page. SMTP Server is used for sending emails.