Carry a Slack follow-up into an email thread
Keep email follow-through connected to its original conversation when a channel message provides the needed context.
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
Reply to email thread
Sends a reply within a specific gmail thread using the original thread's subject, requiring a valid `thread id` and correctly formatted email addresses. supports attachments via the `attachment` parameter with valid `s3key`, `mimetype`, and `name`.
Why this helps
A reply request can get stranded in Slack while the original email thread stays buried in Gmail.
- Keep the reply within the original Gmail conversation.
- Reduce copy and paste between Slack and email.
- Act on clear follow-up requests while their context is visible.
Setup
Build it in a few focused steps.
- 1Connect Slackbot and Gmail once in the Notis portal.
- 2Create an automation that replies in the identified Gmail thread using the requested response.
- 3Pick Channel Message Received as the trigger.
- 4Choose where run reports go and test with one real thread and approved reply content.
Questions about this workflow
Does this action send a reply?
Yes. It sends a reply within a specified Gmail thread. Use it only when the message provides a valid thread and the reply content is clear.
Can it reply if the Slack message has no thread identifier?
The action requires a valid thread ID. The automation needs enough information to identify the accessible thread.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slackbot to Gmail. A trigger fires from one place; an action lands in another.
Slackbot triggers
Gmail actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Modify email labels
Adds and/or removes specified gmail labels for a message; ensure `message id` and all `label ids` are valid (use 'listlabels' for custom label ids).
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Create email draft
Creates a gmail email draft, supporting to/cc/bcc, subject, plain/html body (ensure `is html=true` for html), attachments, and threading.
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Create label
Creates a new label with a unique name in the specified user's gmail account.
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 Draft
Permanently deletes a specific gmail draft using its id; ensure the draft exists and the user has necessary permissions for the given `user 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.
Delete message
Permanently deletes a specific email message by its id from a gmail mailbox; for `user id`, use 'me' for the authenticated user or an email address to which the authenticated user has delegated access.
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Fetch emails
Fetches a list of email messages from a gmail account, supporting filtering, pagination, and optional full content retrieval.
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Fetch message by message ID
Fetches a specific email message by its id, provided the `message id` exists and is accessible to the authenticated `user id`.
Reaction Added Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.
Fetch Message by Thread ID
Retrieves messages from a gmail thread using its `thread id`, where the thread must be accessible by the specified `user id`.
Connect any two apps with Notis in the middle.
Slackbot and Gmail, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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