The Communications - Preferences page controls how Zero Friction automatically sends documents and messages to clients. Here you can configure global communication settings, such as enabling or disabling automatic communication, secure testing via test mode, and email sending settings.
You can find this configuration via Configuration → Communication → Settings → Preferences.
These settings are crucial for:
the correct sending of invoices, reminders and notifications
safe testing without reaching customers
reliable email delivery via domain authentication
What does this part show?
The Preferences page consists of three main parts:
Language settings
Communication preferences
Email settings
All settings are displayed in clear cards with a title, a brief explanation, and input fields. Changes are applied after saving.
Language settings
What does this component regulate?
Here you manage which languages are supported for customer communication and which language is used by default.
Functionality
Overview of all supported languages
Indication of the standard language
Ability to add or remove languages
The default language is used when:
a customer has no explicit language preference
a document or template is not available in another language
Changes will apply immediately to new communications.
Communication preferences
What does this component regulate?
This is the central switching point for automatic customer communication and test mode.
Enable automatic customer communication
Enabled
Invoices, reminders and notifications are sent automatically
The configured templates and channels (email, SMS, post) are used
Customer-specific communication preferences remain respected
Disabled
No automatic messages are sent
Manual transmission remains possible
Example
When this option is enabled, a new invoice will automatically be sent by email to the customer's registered address.
Test mode (Sandbox)
Test mode allows you to securely test communications without contacting customers.
Operation
Enable Automatic Customer Communication
Enable Test Mode
Enter a test email address (required)
Optional: Enter a test phone number for SMS
All communications will then be redirected to these test receivers.
Example
Test email:
[email protected]Test phone: +32123456789
➡️ All invoices and reminders go to the test address, not to customers.
Test mode always requires a test email address. A phone number is optional.
Email settings
What does this component regulate?
This component determines how emails are technically sent, including sender, reply-to, and domain authentication.
Domain authentication
In order to send emails on behalf of your own domain, this domain must be verified.
Steps
Enter your domain name (e.g.,
yourcompany.com)Click on Verify
Add the specified DNS records (CNAME / DKIM)
Click Verify again to check the status
Status indication
Green: Verified
Yellow: Not verified
Red: Error
Without a verified domain, sender addresses cannot be set.
Sender email (Sender)
Sender Name – Display Name (e.g. Invoicing)
Email Sender – Must use the verified domain
This field will only be visible after successful domain verification.
Reply-To
Reply-To Name – Display name for replies
Reply-To e-mail – Address where customer replies are received
This can be a different domain than the sender address.
Behaviors & Logic
Communication settings will apply to all future automated messages
Test mode affects all communications sent after activation
Domain changes always require new verification
Language changes are applied immediately to new communications
Existing or already sent communications will not be modified.
Why don't I see the sender email field?
Because the domain has not yet been verified.
Can I activate test mode without an email address?
No, a test email address is required.
Can I use another domain as a sender?
Only if that domain is verified first.
What if my domain is already registered?
Each domain can only be associated with one organization. Please contact support.
Does test mode affect existing messages?
No, only new communications after activation.
Can I disable communication per customer?
Yes, customer settings can override these global preferences.
How quickly are changes active?
Directly for new communications. Already scheduled messages may still use the old settings.
Communication Preferences – Global settings for automatic customer communications
Test Mode (Sandbox) – Mode that redirects communications to test receivers
Domain Authentication – Email domain verification via DNS records
DNS records – Technical records that confirm domain ownership
Email Sender – The “from” address in customer emails
Reply-To e-mail – Address for customer responses
Culture Table – Overview of supported languages
Test Recipient – Email address or phone number that receives communications in test mode