Check whether a Slack DM email is free
When an address appears in a direct message, Clearout can identify free email services so you can decide whether it fits the business context.
Trigger
Direct Message Received
Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.
Action
Verify Free Email Account
Tool to detect if an email is from a free email service provider. Use after confirming the email format.
Why this helps
A quick glance cannot always tell whether a contact uses a company mailbox or a personal provider.
- See provider type before an onboarding step.
- Reduce guesswork when reviewing new contacts.
- Keep the result attached to a DM-based request.
Setup
Build it in a few focused steps.
- 1Connect Slack and Clearout to Notis once in the portal.
- 2Create an automation from the portal or ask Notis conversationally.
- 3Ask Notis in one instruction to use Clearout's free email account verifier for email addresses in Slack DMs and report the provider classification.
- 4Select Direct Message Received, choose a run-report channel, and test with one real personal-provider address.
Questions about this workflow
Does a free email result mean the address is invalid?
No. This check identifies whether the provider is free; it is separate from deliverability verification.
Can I run this for only business-related DMs?
Yes. State in the plain-language instruction when a DM should count as a business contact 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
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