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Recheck an IP after a Slack review marker changes

Refresh an anonymization check when your team changes a message's review status.

Trigger

Message Reaction Removed

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

Action

IP2Proxy: Get Proxy Detection

Tool to detect if an IP is a proxy, VPN, or TOR exit node. Use when verifying anonymizing services.

Why this helps

A changed review marker can leave uncertainty about whether an IP received the necessary follow-up.

  • Repeat a proxy, VPN, or TOR check after a review marker changes.
  • Tie the follow-up to the original IP message.
  • Make a status change a prompt for renewed attention.

Setup

Build it in a few focused steps.

  • 1Connect Slack and Ip2location to Notis once.
  • 2Create an automation and tell Notis in plain language to recheck the IP in a message when a chosen review reaction is removed.
  • 3Select Message Reaction Removed and choose where Notis reports runs.
  • 4Test by removing the intended reaction from an appropriate IP message.

Questions about this workflow

Does a new check mean the IP has changed?

No. The workflow reruns a proxy-detection lookup because a reaction was removed; the event does not indicate that the IP changed.

Can I scope the event to a particular emoji?

The reaction-removed event supports optional filtering by emoji name and channel.

When this happens · Trigger

Do this · Action

Supported Triggers and Actions

Notis builds workflows that link Slack to Ip2location. A trigger fires from one place; an action lands in another.

Slack triggers

Ip2location actions

Recurring trigger

Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.

TriggerScheduled

Bulk IP Geolocation

Tool to retrieve geolocation information for multiple IP addresses in bulk. Use when you need batch processing of up to 1000 IPs per request.

ActionInstant

Webhook trigger

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

TriggerInstant

Check IP2Location API Credits

Tool to check remaining IP2Location API credits. Use after setting up authentication to monitor usage.

ActionInstant

New Channel Created Trigger

Triggered when a new channel is created in Slack.

TriggerInstant

IP2WHOIS Hosted Domains Lookup

Tool to retrieve hosted domains for a given IP address. Use when you need to list domains hosted on an IP.

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

IP2Location Get IP Geolocation

Tool to retrieve geolocation data for an IP address. Use when detailed IP location info is needed.

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

IP2Proxy: Get Proxy Detection

Tool to detect if an IP is a proxy, VPN, or TOR exit node. Use when verifying anonymizing services.

ActionInstant

Message Reaction Added

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

TriggerInstant

IP2Location Distance Calculator

Tool to calculate distance between two IPs. Use when geographic separation between two IP addresses is needed.

ActionInstant

Message Reaction Removed

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

TriggerInstant

IP2WHOIS Domain WHOIS Lookup

Tool to retrieve WHOIS information for a domain. Use when you need domain registration details.

ActionInstant

Reaction Added Trigger

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

TriggerInstant

IP2Location List IPs

Tool to list a curated set of test IPv4 and IPv6 addresses. Use when sample IPs are needed for IP2Location or IP2Proxy lookups during development or testing.

ActionInstant

Connect any two apps with Notis in the middle.

Slack and Ip2location, or any other combination from 1,000+ integrations.

When this happens · Trigger

Do this · Action

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