Slack Alert Feature

LetsDMARC Slack Alerts Feature

Requirements

• You have access to the Slack workspace.
• You have permission to create channels in the workspace.
• You have permission to create or install Slack apps.

Create a Channel in Slack

Slack provides an official guide explaining how to create a channel: https://slack.com/help/articles/201402297-Create-a-channel

Steps

1. Open Slack.
2. From the left sidebar, click the plus button next to Channels.
3. Select Create a channel.
4. Enter the channel name.

   Example: letsdmarc-security-alerts

5. Optionally, add a channel description.

   Example: Channel used to receive LetsDMARC security and system alerts via webhook.

6. Choose the channel visibility:
   • Public: visible and searchable by members of the workspace.
   • Private: visible only to selected members.
7. Click Create.
8. Add the users or groups that need to receive the alerts.

Create an Incoming Webhook APP for the Channel

Slack allows external systems to post messages into a channel using Incoming Webhooks: https://docs.slack.dev/messaging/sending-messages-using-incoming-webhooks/

Steps

1. Go to the Slack API apps page.
2. Create a new Slack app.
3. Choose From scratch.

4. Enter an app name.

   Example: LetsDMARC Security Alerts Webhook

5. Select the Slack workspace where the app should be installed.
6. Click Create App.
7. In the app configuration page, go to Incoming Webhooks.
8. Enable Activate Incoming Webhooks.
9. Click Add New Webhook to Workspace.
10. Select the channel where alerts should be posted.

Example: #security-alerts

11. Click Allow

11. Slack will generate a unique Webhook URL

Add webhook URL to LetsDMARC recipient

Go in the Alert section, select the recipient you want to add the webhook URL to and enter the webhook link.