General
Separate email limits
For tracking purposes, the system creates separate emails for each recipient if the message requires a link to Thru server, and request login is turned off.
This parameter prevents massive email generation by limiting the number of emails that it will send.
SMTP server message recipient limit
This value is optional. If your SMTP server has a limit, and the limit is entered here, Thru Server will block messages which exceed the limit.
If the limit is NOT entered here, and a message exceeds the recipient limit, the SMTP server will send the message with a partial recipient list and the user will get an error message.

Request recipient login
This option can be set to Never, Always, or User choice.
Always means that the recipient who wants to download a link will always be forced to log in, while never means they will never have to log in.
User choice defers this decision to the user who sends the Thru mail, giving them the option to require it or not.
Never: No registration for external download. For tracking, the system always generates separate emails for each recipient.
Always: The system never has to generate separate emails since external download always requires registration (a user can use ‘remember me’ to skip authentication).
User Choice: Request login is turned off by default but the user can turn it on when sending a message.
Request login from recipients by default is allowed only when User Choice is selected.
If request recipient login is set to ‘User Choice’ – Request login is turned on as a default value for all new messages.
Enabled message fields: Option that controls the availability of the private message and regular message options when composing a Thru message.

Message Password Instead of Recipient Login
Available in the web portal and Outlook Addin
The use of a message password instead of recipient login is allowed only when Never is selected in the Request Recipient Login setting.
This allows you to set a new password for each email sent out.

Enforce message password
For backward compatibility, set this option to use a message-level password instead of recipient login.
Password enforcement is controlled by a separate checkbox ‘Enforce message password’
Domain Filter Mode
Email Domain Whitelisting/Blacklisting to access Thru secure email
The ability to whitelist or blacklist email domains for recipients of Thru secure emails, enhancing email security. The lists are checked during recipient authentication or registration processes required to access Thru secure email.
The lists are mutually exclusive, either whitelist or blacklist can be enabled, and are managed in File Sharing Administration section, page Site Options, tab Messaging:

If a message is protected by a password and the recipient’s email domain is whitelisted, no password will be requested.
The whitelist option is only available if the “Use message password instead of recipient login” checkbox is checked.
Expired Messages
Enable expired email notification – enables or disables email notification of expired messages based on your preference.

“From” address field for emails sent from Thru web application
Emails sent by Thru web application use the current user email address in the From field of outgoing emails.
Some spam and fishing filters may reject the emails since Thru mail server is not registered as an outgoing email server for the current user email domain.
The setting allows to set a custom email address in From field of outgoing emails to thrufs@thruinc.com email domain.
Note: Thru Notification emails default address can be customized, please contact helpcenter@thruinc.com for further information

For outgoing web message only desktop/mobile
The Default subject text in Thru web emails can be set
