Notice urgent signals without watching every channel
Let a deliberate reaction surface the message that needs your attention.
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
Keeping every channel open to catch urgent items adds constant monitoring overhead.
- Uses an intentional reaction to flag an item.
- Includes the original message context in an email alert.
- Reduces the need to monitor channels continuously.
Setup
Build it in a few focused steps.
- 1Connect Slack and Agent mail to Notis once in the portal.
- 2Create the automation in the portal or ask Notis to make it conversationally.
- 3In one instruction, ask Notis to email an alert with the reacted-to message context when a designated urgent reaction is added.
- 4Choose the Slack message reaction added trigger, set the intended reaction filter if available, and select a report channel.
- 5Test by adding the chosen reaction to one real message.
Questions about this workflow
Can any emoji trigger the alert?
Use the trigger's optional emoji filter and state the intended reaction in the instruction.
Will the email explain why it was urgent?
It can include the message and channel context; it should not infer urgency beyond the signal and message.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slack to Agent mail. A trigger fires from one place; an action lands in another.
Slack 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.
Slack and Agent mail, 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 Agent mail.