Who This Is For / When to Use
Use DND when a contact unsubscribes, opts out, requests limited communication, or when Kyrios automatically blocks delivery due to compliance, carrier errors, or spam prevention.
What the DND Feature Does
DND prevents outbound and inbound communications to a contact without deleting their contact record.
You can apply DND to all channels or specific channels only, depending on the contact’s preference or system rules.
Where to Find DND Settings on a Contact
Open the contact record.
Select the DND tab.
Review available DND options by channel.
Available DND Options
DND All Channels
Blocks all inbound and outbound communication for the contact.
Channel-Specific DND
Allows granular control by channel:
Email
Text Messages
Calls & Voicemail
Inbound Calls and SMS
How to Enable or Disable DND Manually
Open the contact record.
Click the DND tab.
Check or uncheck:
DND All Channels, or
Individual channel checkboxes.
Changes save automatically.
This immediately controls whether Kyrios can send or receive messages on those channels.
DND Status Types
DND On
No automated or manual inbound or outbound messages are allowed.
This applies to all channels.
DND Off
All automated and manual messages function normally.
DND Partial
Some channels are blocked while others remain active.
Email DND Behavior
When Email DND Is Enabled Automatically
Email DND turns on automatically when:
A contact unsubscribes.
An email is marked as spam.
Permanent ISP failures occur (bounce, complaint, suppression).
Removing Email DND
You can disable Email DND manually except when marked as spam.
For spam or suppression issues, the email must be removed from the ISP suppression list before disabling DND.
SMS DND Behavior
When SMS DND Is Enabled Automatically
SMS DND is enabled when:
A contact replies with opt-out keywords (STOP, UNSUBSCRIBE).
Carrier or delivery errors are returned.
SMS DND Types
Response Code | Description | DND Type |
30003 | Out of service / Carrier filtering | Temporary |
30005 | User inactive / Number does not exist | Temporary |
30006 | Landline / Cannot receive SMS | Temporary |
30004 | Does not want SMS | Permanent |
Removing SMS DND
Temporary SMS DND: Can be removed from the contact record.
Permanent SMS DND: Requires the contact to reply START or verified opt-in evidence submitted to support.
Using Unsubscribe Links
You can insert unsubscribe trigger links into emails or SMS messages.
Open the message composer.
Click the ⚡ Trigger Links icon.
Select Unsubscribe Link.
This automatically updates the contact’s DND status when clicked.
Automating DND with Workflows
You can trigger workflows based on DND changes.
Example Trigger: Contact DND Enabled
Trigger: Contact DND
Filters:
DND direction = Inbound
DND flag = Enabled DND for all channels
Use this to stop campaigns, notify staff, or log compliance actions.
Important Default Behavior
If a contact unsubscribes from any communication channel, Kyrios automatically enables DND for all channels.
You can manually re-enable specific channels if the contact explicitly allows them.
Common Issues and Fixes
Emails or SMS Not Sending
Check the contact’s DND tab to confirm the channel is not blocked.
Contact Wants Only One Channel
Disable DND All Channels, then enable DND only for restricted channels.
SMS Permanently Blocked
Confirm whether the block was caused by error code 30004 or an opt-out keyword.