MX Lookup API + Slack Integration

Why connect them

The MX Lookup API in Slack.

Slack is where work happens for millions of teams. Integrating APIs with Slack enables intelligent notifications, automated alerts, and data-rich messages. Transform your channels into real-time dashboards and keep your team informed with contextual, actionable information.

What you can build

Workflows worth wiring.

Send instant alerts when a monitored website's SSL certificate is expiring

Post daily weather forecasts to team channels for field workers

Notify sales teams when a lead's email is validated as deliverable

Alert DevOps when DNS changes are detected on critical domains

Templates

Ready-made ideas.

New domain added (via webhook) Look up MX records → alert if empty

Alert when a domain has no MX records

Post a Slack alert when a newly added domain returns an empty mx array, indicating it cannot receive email.

Scheduled daily Fetch domains → look up MX records → post summary

Daily MX record summary

Post a daily digest to Slack listing all domains and their primary mx exchange hostnames for quick review.

Setup

Connect it in a few steps.

Set up with Zapier

1
Set the trigger. Create a Zap with Slack as the trigger app and "New message" as the event. Connect your account.
2
Add the API action. Add APIVerve as the action, select the MX Lookup API, and map your trigger data to the request.
3
Send it back. Add a second Slack action for "Send message" and map the returned fields (like domain) into it.
4
Test & turn on. Test the Zap with real data to confirm the mapping, then turn it on.

Set up with Make

1
Add the trigger. Create a scenario and add a Slack module set to "New message". Authenticate your account.
2
Call the API. Add an HTTP module pointing at api.apiverve.com/v1/mxlookup with your x-api-key header. Pass the trigger's data as the input.
3
Parse & map. Add a JSON module to read the response, then a Slack module for "Send message". Map fields like data.domain into place.
4
Activate. Run once to confirm the mapping, then switch the scenario on and set its schedule.

Set up with n8n

1
Add the trigger node. Start a workflow with a Slack trigger node for "New message" and connect your credentials.
2
Add an HTTP Request node. Point it at api.apiverve.com/v1/mxlookup using Header Auth (x-api-key). Feed in the trigger data.
3
Map with expressions. Add a Slack node for "Send message" and reference the response with expressions such as {{ $json.data.domain }}.
4
Execute & activate. Execute manually to verify, then activate the workflow for production.

The payload

What Slack receives.

domain"yahoo.com"

mxarray of 3

Slack + MX Lookup API FAQ

Can I send rich formatted messages with API data to Slack?

Yes. Slack supports Block Kit for rich message formatting. Automation platforms let you construct messages with headers, bullet points, buttons, and formatted data from API responses.

How do I avoid spamming a Slack channel with too many API notifications?

Use filters in your automation to only send important alerts. You can also batch notifications using scheduled digests instead of real-time alerts for non-urgent data.

Can I trigger API calls from Slack messages?

Yes. Set up Slack as a trigger for new messages containing specific keywords. Parse the message content and use it as input for your API call.

MX Lookup API + Slack