Revisit category policy after a review signal changes
Keep policy discussions moving when a review marker changes.
Trigger
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Action
List Categories
Tool to list categories with basic information. use when retrieving all dnsfilter categories for policy configuration.
Why this helps
A changed reaction can signal unresolved work, but the follow-up context is easy to lose.
- Captures a meaningful review change
- Returns current category context
- Helps teams close unresolved policy questions
Setup
Build it in a few focused steps.
- 1Connect Slackbot and Dnsfilter once in Notis
- 2Create an automation named Category policy follow up
- 3Tell Notis to list Dnsfilter categories and summarize the policy question from the source message
- 4Pick Message Reaction Removed as the trigger and choose a report channel
- 5Test by removing one real reaction
Questions about this workflow
Does removing a reaction always mean the policy changed?
No. The workflow treats it as a review signal and leaves the decision to the team.
Can it update a category?
No. It provides category information for discussion.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slackbot to Dnsfilter. A trigger fires from one place; an action lands in another.
Slackbot triggers
Dnsfilter actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Create IP Address
Tool to create a new ip address in dnsfilter. use after confirming the target network id exists.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Get Application Category
Tool to get basic information of a specific application category. use when you need details for a given application category id.
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Get Billing Information
Tool to retrieve basic billing information for an organization. use when you need to obtain billing details for reporting or automation tasks.
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Get Category
Tool to get basic information of a specific category. use when you need to retrieve details for a category by its id.
Direct Message Received
Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.
Get IP Address
Tool to get basic information of the specified ip address. use when you need to fetch metadata for a particular ip after authentication.
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
List All Categories
Tool to list all categories including internal categories. use when you need the complete set of filtering categories.
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
List All IP Addresses
Tool to list all user-associated ip addresses. use when you need a comprehensive list of all ip address entries in your organization.
Reaction Added Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.
List All MAC Addresses
Tool to list all mac addresses with basic information. use when you need to retrieve all mac address entries in your organization.
Connect any two apps with Notis in the middle.
Slackbot and Dnsfilter, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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