- In Slack, create an app for your workspace, switch on Incoming Webhooks and choose Add New Webhook to Workspace. Pick the Slack channel that should receive alerts and copy the Webhook URL.
- In Postalu open Alerts → Add a channel → Slack.
- Enter a Name (up to 60 characters, for example Team channel) and paste the URL.
- Under Send me an alert when, tick the events. Use a group's toggle, Select all or Clear to go faster.
- Press Add channel, then Send test on the new channel to see the test message in Slack.
- The URL must start with
https://hooks.slack.com/services/, otherwise: Enter a Slack incoming-webhook URL (it starts with https://hooks.slack.com/services/). - The URL is stored encrypted and is never shown again. To change it, remove the channel and add it again.
- Messages arrive as the event title in bold, then the details and a link.
Read next
- Alerts: what they are and what triggers them Get a message in Slack, Teams or your inbox when a post fails, a login ends, a platform hits a limit, and more.
- Alerts are not arriving Checks and messages for when a channel stays quiet.
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