Keep event attendee opt-ins out of follow-up limbo
Collecting follow-up details after an event can become a scattered admin task. Notis can save clear newsletter opt-ins from Slack to Emailoctopus.
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
Create Contact
This tool creates a new contact in emailoctopus. the tool will add a contact to a specified list with the provided information.
Why this helps
Event follow-up details are often gathered in bursts, then forgotten when the founder returns to other work.
- Keeps event follow-up consent attached to the signup decision.
- Reduces re-reading event planning threads for contacts.
- Makes the destination list explicit in the instruction.
Setup
Build it in a few focused steps.
- 1Connect Slack and Emailoctopus to Notis once in the portal.
- 2Create an automation or ask Notis to add event attendees who explicitly opt in within a Slack channel message.
- 3In one plain-language instruction, specify the Emailoctopus list and require both an email and clear permission for updates.
- 4Select the channel message trigger and choose the run-report channel.
- 5Test with one real attendee opt-in and verify the contact was added to the right list.
Questions about this workflow
Can the automation add everyone mentioned in an event thread?
It should add only people whose message includes an email address and explicit permission to receive the specified updates.
Do I need a separate automation for each event?
You can describe the intended event list in the instruction. Create separate automations when events need different destinations or consent rules.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slack to Emailoctopus. A trigger fires from one place; an action lands in another.
Slack triggers
Emailoctopus actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Create Contact
This tool creates a new contact in emailoctopus. the tool will add a contact to a specified list with the provided information.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Create List
This tool creates a new mailing list in emailoctopus. it allows users to create a new list where contacts can be added and managed.
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Delete Contact
This tool allows you to delete a contact from a specified list in emailoctopus. it uses the delete /api/1.6/lists/{list id}/contacts/{contact id} endpoint to permanently remove the contact from the list. this action is irreversible and is essential for list management and data privacy compliance.
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Delete List
This tool allows you to delete an existing mailing list from your emailoctopus account. once a list is deleted, it cannot be recovered, and all contacts within the list will be permanently removed. note: lists can only be deleted if no contacts within the list have received an email in the last 7 days.
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 All Lists
This tool retrieves all the mailing lists associated with the emailoctopus account.
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Get Recent Campaigns
This tool retrieves a list of recent campaigns from the emailoctopus account. it uses the get endpoint at https://emailoctopus.com/api/1.6/campaigns and allows filtering by parameters like limit and page.
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Unsubscribe Contact
This tool unsubscribes a contact from an emailoctopus list. it takes an email address as input, retrieves the contact's details using the find contact functionality, and unsubscribes the contact from the associated list.
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 Emailoctopus, 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 Emailoctopus.