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Verify vendor contact emails from Slack

Check the contact before a vendor conversation turns into a missed follow-up.

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 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

A wrong vendor address can delay a decision and create avoidable back-and-forth.

  • Confirm a vendor address before depending on it.
  • Reduce bounced messages and repeat follow-up.
  • Keep the result alongside the Slack context.

Setup

Build it in a few focused steps.

  • 1Connect Slack and Emailable to Notis once in the portal.
  • 2Create an automation named for vendor email checks.
  • 3Write one prompt telling Notis to verify the email address when a Slack channel message shares a vendor contact.
  • 4Pick Channel Message Received, select a channel for run reports, and test with one real vendor address.

Questions about this workflow

Does the workflow send anything to the vendor?

No. It checks the address with Emailable and reports the result.

Can this work with private channels?

The supplied channel message trigger covers public, private, and multi-party IM channels.

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.

TriggerScheduled

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.

ActionInstant

Webhook trigger

Notis starts this workflow when an external tool or custom backend sends an HTTP request.

TriggerInstant

Get Batch Status

Tool to get the status and results of a batch verification job. use after submitting a batch to check its progress.

ActionInstant

New Channel Created Trigger

Triggered when a new channel is created in Slack.

TriggerInstant

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.

ActionInstant

Channel Message Received

Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.

TriggerInstant

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.

ActionInstant

Direct Message Received

Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.

TriggerInstant

Verify Email

Tool to verify a single email address and return detailed results. use when you need to check email deliverability and risk.

ActionInstant

Message Reaction Added

Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.

TriggerInstant

Message Reaction Removed

Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.

TriggerInstant

Reaction Added Trigger

DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.

TriggerInstant

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

Save your first hour today.

7-day trial of any paid plan, with 20$ of usage included.
No card. Works with personal or business Emailable.