Get Sandbox Alerts in Slack — The Moment They Happen
Connect your Sandbox inbox to any Slack channel. Every email received, SMS logged, or webhook captured fires an instant Slack message — with sender, subject, and a direct link to inspect it.
Works with any Slack Workspace
Channel-Level Alerts
Active Immediately After Setup
WHY CONNECT SLACK
Your team is already in Slack. Bring Sandbox alerts there too
QA engineers watching an inbox tab, backend developers refreshing a webhook list, developers asking "did the email arrive?" over Slack — all of it goes away when you connect Sandbox to Slack.
Every inbox event fires a Slack message instantly. Your team sees it in the channel, clicks the link, and opens the full event in Sandbox. No tab switching. No polling. No asking.
WHAT A SLACK ALERT LOOKS LIKE
WHAT A SLACK ALERT LOOKS LIKE
Connected in Three Steps
01
Go to Integrations
From your Sandbox account, navigate to Integrations and select Slack. Click Connect and authorize Sandbox to post to your Slack workspace.
02
Choose your Channel and Inboxes
Select the Slack channel where alerts should be posted. Then choose which Sandbox inboxes and projects trigger alerts on this connection.
03
Test and Confirm
Send a test alert to confirm the connection is working. Save — alerts start immediately.
Your team, connected to every Inbox Event
QA team sign-off on OTP delivery
Your QA engineer is validating the SMS OTP flow. Instead of watching the SMS inbox, they get a Slack notification the moment the OTP lands — with the code preview and a direct link.
Backend team notified on webhook events
Connect your webhook project to a backend team Slack channel. Every payload that fires — Stripe, GitHub, internal services — sends an instant message with the event type and a link to the full payload.
Email template review coordination
Connect your staging email inbox to your design team's Slack channel. The moment a new test email arrives, the designer is notified and can open it directly in Sandbox for HTML/preview review.
Slack alerts for failed deliveries
Get instant Slack notifications when emails or SMS fail in the sandbox. Quickly catch delivery issues, debug errors, and fix problems before they reach real users.
The things developers ask about the Slack Integration
Which Slack channel do alerts get posted to?
Whichever channel you choose during setup. You can pick a different channel per inbox or project, or route everything to one shared alerts channel.
Can I connect multiple Slack workspaces?
Yes. Each Sandbox account can connect to as many Slack workspaces as you need, with each connection scoped to its own set of inboxes.
Does the Slack alert include the full event content?
Each alert includes the event type, sender or source, a subject or payload preview, and a direct link — clicking it opens the full event in Sandbox.
Can I limit alerts to specific inboxes only?
Yes. During setup you choose exactly which inboxes and projects should trigger alerts on this Slack connection — nothing else will post.
Is there a delay between an event happening and the Slack alert?
No. Alerts fire immediately after the event lands in your Sandbox inbox — there is no polling or batching delay.
Slack alerts are one piece of a complete testing environment
Your app sends emails, SMS, webhooks, and TOTP codes. Sandbox handles all four — in one workspace, under one account, visible to your whole team.
Email Inbox
SMS Inbox
Webhook Inbox
TOTP Inbox
Sandbox
Test Email, SMS, Webhooks & 2FA codes without touching production.
Operational
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