Keep Slack clean by archiving closed-out email threads
When you send an email that closes out a Slack discussion, Notis automatically archives the thread so it's out of your active view but stays in history.
Trigger
Email Sent
Triggers when a Gmail message is sent by the authenticated user. It polls the 'SENT' label and emits metadata including sender, recipients, subject, timestamp, and thread ID.
Action
Archive a Slack conversation
Archives a slack conversation by its id, rendering it read-only and hidden while retaining history, ideal for cleaning up inactive channels; be aware that some channels (like #general or certain dms) cannot be archived and this may impact connected integrations.
Why this helps
Slack fills with old discussions that were resolved via email, but threads stay visible and active, cluttering the workspace and creating cognitive noise.
- Keep your Slack workspace signal-to-noise ratio high by removing resolved discussions
- Reduce context-switching by hiding old threads from your active view automatically
- Maintain searchable history without cluttering the present
- Create clear visual boundaries between active and resolved items
Setup
Build it in a few focused steps.
- 1Connect Gmail and Slack to Notis.
- 2Create an automation: ask Notis 'When I send an email related to a Slack thread, archive that thread' or use the portal.
- 3Describe the outcome: 'Archive the Slack conversation and post a message: This issue was resolved via email.'
- 4Select the trigger: Email Sent to specific recipients or domains.
- 5Choose a Slack channel for run reports.
- 6Test by discussing something in Slack, then sending an email about it and verifying the thread archives.
Questions about this workflow
How does Notis know which thread to archive?
Describe it in your prompt. Common triggers: threads where the participants match the email recipients, or Slack messages from people you're emailing.
Can I prevent certain threads from being archived?
Yes. Exclude specific channels or threads in your prompt (e.g., 'don't archive threads in #announcements' or 'only archive threads I started').
What if I archive a thread by mistake?
You can unarchive it manually in Slack. Then refine your Notis prompt to be more specific about which emails trigger archival.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Gmail to Slack. A trigger fires from one place; an action lands in another.
Gmail triggers
Slack actions
Email Sent
Triggers when a Gmail message is sent by the authenticated user. It polls the 'SENT' label and emits metadata including sender, recipients, subject, timestamp, and thread ID.
Set snooze duration
Deprecated: turns on do not disturb mode for the current user, or changes its duration. use `set dnd duration` instead.
New Gmail Message Received Trigger
Triggers when a new message is received in Gmail.
Add a custom emoji to a Slack team
Deprecated: adds a custom emoji to a slack workspace given a unique name and an image url. use `add emoji` instead.
Add an emoji alias
Adds an alias for an existing custom emoji in a slack enterprise grid organization.
Add a remote file
Adds a reference to an external file (e.g., google drive, dropbox) to slack for discovery and sharing, requiring a unique `external id` and an `external url` accessible by slack.
Add a star to an item
Stars a channel, file, file comment, or a specific message in slack.
Add call participants
Registers new participants added to a slack call.
Add emoji
Adds a custom emoji to a slack workspace given a unique name and an image url; subject to workspace emoji limits.
Add reaction to message
Adds a specified emoji reaction to an existing message in a slack channel, identified by its timestamp; does not remove or retrieve reactions.
Connect any two apps with Notis in the middle.
Not just Gmail and Slack. Any combination from 985+ integrations.
When this happens · Trigger
Do this · Action
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