Send email after a Slack approval reaction
A reaction can be the final approval. Once it appears, Notis sends the prepared email with the right context.
Trigger
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Action
Send Email
Send an email using agentmail api
Why this helps
Approval gets lost between draft messages, follow-ups, and the final send.
- Adds a visible approval checkpoint
- Sends only after the agreed reaction
- Keeps the source message attached to the decision
Setup
Build it in a few focused steps.
- 1Connect Slackbot and Agent mail in Notis once.
- 2Create an automation for approved email sends.
- 3Tell Notis which reaction means approved and how to compose the email from the message.
- 4Pick Message Reaction Added as the trigger and select a report destination.
- 5Test by adding the approval reaction to one prepared request.
Questions about this workflow
Can I use a specific emoji?
Yes. The trigger supports optional filtering by emoji name, and your instruction can define its meaning.
What happens when the reaction is removed?
This workflow only runs when the approval reaction is added. Create a separate removal workflow if you need a cancellation response.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slackbot to Agent mail. A trigger fires from one place; an action lands in another.
Slackbot triggers
Agent mail actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Get Message
Get a specific message from an agentmail inbox
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
List Messages
List messages from an agentmail inbox
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Send Email
Send an email using agentmail api
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Direct Message Received
Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.
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.
Slackbot and Agent mail, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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