Keep speaking invitations from getting lost in your inbox
Give an invitation a clear follow-up path, whether you plan to accept or decline thoughtfully.
Trigger
Direct Message Received
Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.
Action
Send Letter
Tool to send a letter via u.s. mail with specified recipient, sender, and pdf. use after confirming recipient and document details. example: send letter(to name='john doe', to address='123 main st, ...', file url='https://...')
Why this helps
Founder opportunities can arrive in scattered messages and be easy to miss among daily decisions.
- Capture an opportunity that arrives in a DM.
- Make a considered response easier to complete.
- Confirm the intended response document and recipient.
Setup
Build it in a few focused steps.
- 1Connect Slack and Docupost to Notis once in the portal.
- 2Create the automation in the portal or ask Notis to create it conversationally.
- 3Describe in one instruction how an invitation DM should prompt a response letter, and require confirmation of the final response and mailing details.
- 4Choose Direct Message Received, select a channel for run reports, and test with one real invitation message.
Questions about this workflow
Can this handle an invitation that needs a decision first?
Ask Notis to prepare a letter only after your response is decided and the final document is available.
Will this trigger on Slack channel posts?
No. Direct Message Received is for DMs. Use Channel Message Received if invitations are posted in a channel.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slack to Docupost. A trigger fires from one place; an action lands in another.
Slack triggers
Docupost actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Send Letter
Tool to send a letter via u.s. mail with specified recipient, sender, and pdf. use after confirming recipient and document details. example: send letter(to name='john doe', to address='123 main st, ...', file url='https://...')
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Send Postcard
Tool to send a postcard via u.s. mail with specified recipient, sender, and front/back images. use after confirming recipient addresses and design urls. example: send postcard(to name='john doe', ..., front image='https://...', back image='https://...')
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Direct Message Received
Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
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 Docupost, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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