Validate subscriber emails from Slack DMs
Check a subscriber address as it is passed along, before it becomes another list cleanup task.
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 Email
Tool to verify a single email address and return detailed results. use when you need to check email deliverability and risk.
Why this helps
Subscriber details shared in private messages often need a second pass that is easy to forget.
- Catch invalid addresses before list entry.
- Keep a lightweight check attached to the handoff.
- Reduce the need to revisit the DM later.
Setup
Build it in a few focused steps.
- 1Connect Slack and Emailable to Notis once through the portal.
- 2Create an automation in the portal and name it for subscriber checks.
- 3Write one plain-language instruction to verify addresses in DMs that pass along newsletter subscribers and report the result.
- 4Choose Direct Message Received, select a channel for run reports, and test with one real subscriber address.
Questions about this workflow
Does this add the person to a newsletter list?
No. This workflow verifies an address with Emailable. It does not add contacts to a mailing platform.
Can it ignore DMs that have no email?
Include that instruction in the prompt so Notis skips messages without an address.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slack to Emailable. A trigger fires from one place; an action lands in another.
Slack triggers
Emailable actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Get Account Info
Tool to retrieve account information including owner email and available credits. use when you need to confirm account status before sending email verifications.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Get Batch Status
Tool to get the status and results of a batch verification job. use after submitting a batch to check its progress.
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Initiate OAuth Authorization
Tool to initiate oauth 2.0 authorization code flow. use when you need to obtain an authorization code from emailable. returns the url to redirect the user to.
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 Batch Emails
Tool to verify a batch of up to 50,000 email addresses. use when you need bulk deliverability checks for many emails at once.
Direct Message Received
Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.
Verify Email
Tool to verify a single email address and return detailed results. use when you need to check email deliverability and risk.
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Reaction Added Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.
Connect any two apps with Notis in the middle.
Slack and Emailable, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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7-day trial of any paid plan, with 20$ of usage included.
No card. Works with personal or business Emailable.