Batch-check webinar registration emails
Start list cleanup from the Slack message that already holds the registrations.
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
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.
Why this helps
Manual checks make webinar preparation feel like a separate project before follow-up can begin.
- Check registrations together in one batch.
- Reduce repetitive work before attendee follow-up.
- Get a batch verification job underway from Slack.
Setup
Build it in a few focused steps.
- 1Connect Slack and Emailable to Notis once through the portal.
- 2Create an automation named webinar registration verification.
- 3Write one plain-language prompt asking Notis to batch-verify a clearly labeled webinar registration list shared in Slack.
- 4Select Channel Message Received, choose where run reports should appear, and test with a small real list.
Questions about this workflow
Does this action return results immediately?
It initiates batch verification. Use the Get Batch Status action in a suitable follow-up workflow to check a batch's progress.
How should the list be identified?
Describe the webinar context or label in the prompt so Notis can distinguish registrations from regular messages.
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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No card. Works with personal or business Emailable.