Check catch-all domains as contacts come up
When a contact address appears in a channel, Clearout can check whether the domain accepts messages broadly as a catch-all.
Trigger
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Action
Catch-All Verify
Tool to check if an email domain is catch-all. Use after confirming email validity.
Why this helps
A domain-level catch-all setup can make address confidence harder to judge, and that nuance is easy to lose in chat.
- Add domain-level context to contact review.
- Keep an important caveat with the Slack discussion.
- Help teammates decide when more verification is needed.
Setup
Build it in a few focused steps.
- 1Connect Slack and Clearout to Notis once in the portal.
- 2Create an automation in the portal or ask Notis conversationally.
- 3Ask Notis in one instruction to check the domain for catch-all status when an email is shared in the chosen channel and explain the result.
- 4Select Channel Message Received, choose a run-report channel, and test with one real address.
Questions about this workflow
Does this verify the exact mailbox?
No. This action checks whether the domain is catch-all; use the instant verifier to check an individual email address.
What should the team do with a catch-all result?
Treat it as added context for review and decide whether the address needs another check.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slack to Clearout. A trigger fires from one place; an action lands in another.
Slack triggers
Clearout actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Autocomplete Company to Domain
Tool to autocomplete company names to probable domains with confidence scores. Use after obtaining a company name or URL to get suggestions.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Business Account Verify
Tool to check if an email belongs to a business/work account. Use when validating corporate emails before onboarding.
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Catch-All Verify
Tool to check if an email domain is catch-all. Use after confirming email validity.
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Verify Disposable Email
Tool to check if an email is from a disposable provider. Use after acquiring an email address.
Direct Message Received
Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.
Find Domain MX Records
Tool to retrieve MX records for a domain in priority order. Use when you need to find a domain's mail servers (e.g., for email routing setup).
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Fetch Domain WHOIS Information
Tool to fetch WHOIS record for a domain. Use when you need WHOIS data for a domain.
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Bulk Email Finder
Tool to upload a CSV or XLSX contacts file for bulk email finding. Use when you need to find emails for a list of contacts in bulk.
Reaction Added Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.
Cancel Bulk Email Finder Job
Tool to cancel a running bulk email finder job. Use when you need to stop an in-progress list scan before completion.
Connect any two apps with Notis in the middle.
Slack and Clearout, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
Save your first hour today.
7-day trial of any paid plan, with 20$ of usage included.
No card. Works with personal or business Clearout.