Connect Slack to Postmark

Send a message to a public or private channel. See the documentation

Add an emoji reaction to a message. See the documentation

Add an emoji reaction to a message. Accepts a channel ID or channel name (resolved automatically). Use **Get Channel History** or **Search** to find the message timestamp. Emoji name should be without colons (e.g. thumbsup, fire, heart). See the documentation

Suspend the workflow until approved by a Slack message. See the documentation

Archive a channel. See the documentation

List files shared in a channel or across the workspace. Accepts a channel ID or channel name (resolved automatically). Filter by file type (e.g. images, pdfs, snippets). Returns file metadata including name, type, size, and download URL. See the documentation

Configure custom blocks and send to a channel, group, or user. See the documentation.

Create a new channel. See the documentation

Create a reminder. See the documentation

Delete a file. See the documentation

Delete a message. See the documentation

Edit an existing message. Accepts a channel ID or channel name (resolved automatically). Requires the message timestamp (ts) from **Get Channel History** or **Post Message**. You can only edit messages posted by the same token/user. See the documentation

Find a Slack message. See the documentation

Find a user by matching against their email. See the documentation

Find a user by their ID. Returns user profile information including name, email (requires users:read.email scope), timezone, and status. See the documentation

Retrieve details for a Slack channel by selecting it or providing an ID. See the documentation

Read the recent message history from a specific channel. Accepts a channel ID or channel name (resolved automatically). Use this when you want to see a channel's latest messages — unlike **Search** which finds messages by keyword. Returns messages with text, timestamps (ts), reactions, and user IDs. Message timestamps can be used with **Get Thread Replies**, **Edit Message**, and **Add Reaction**. See the documentation

Retrieve comprehensive context about the authenticated Slack member, combining auth.test, users.info, users.profile.get, and team.info payloads. Returns the user’s profile (name variants, email, locale, timezone, status, admin flags), raw auth test data, and workspace metadata (domain, enterprise info, icons). Ideal when you need to confirm which user token is active, tailor messages to their locale/timezone, or ground an LLM in the member’s role and workspace before executing other Slack actions. See Slack API docs.

Return information about a file. See the documentation

Retrieve all replies in a message thread. Accepts a channel ID or channel name (resolved automatically). Use **Get Channel History** or **Search** to find the parent message's timestamp (thread_ts). Returns the parent message followed by all replies in chronological order. See the documentation

Retrieve the authenticated user's identity and workspace context. Returns user ID, name, email, timezone, profile, and workspace metadata. Call this first in any session to establish who you are — other tools like **Search** and **List Channels** can then filter by your user ID. See the documentation

Invite a user to an existing channel. See the documentation

Remove a user from a conversation. See the documentation

Return a list of all channels in a workspace. See the documentation

Create a new domain. See the documentation

Create a new sender signature. See the documentation

Delete a specific domain. See the documentation

Delete a specific sender signature. See the documentation

Gets total counts of emails you've sent out that have been returned as bounced. See the documentation

Gets an overview of the browsers used to open links in your emails. This is only recorded when Link Tracking is enabled for that email. See the documentation

Gets total counts of unique links that were clicked. See the documentation

Gets all the details for a specific domain. See the documentation

Gets total counts of recipients who opened your emails. This is only recorded when open tracking is enabled for that email. See the documentation

Gets an overview of the platforms used to open your emails. This is only recorded when open tracking is enabled for that email. See the documentation

Gets a brief overview of statistics for all of your outbound email. See the documentation

Gets a total count of emails you've sent out. See the documentation

Gets a total count of recipients who have marked your email as spam. See the documentation

Gets a total count of emails you've sent with open tracking or link tracking enabled. See the documentation

Retrieves available options for the Domain Id field.

Gets a list of domains containing an overview of the domain and authentication status. See the documentation

Gets a list of sender signatures containing brief details associated with your account. See the documentation

Retrieves available options for the Server Id field.

Retrieves available options for the Signature Id field.

Resend a confirmation email for a specific sender signature. See the documentation

Creates a new DKIM key to replace your current key. Until the new DNS entries are confirmed, the pending values will be in DKIMPendingHost and DKIMPendingTextValue fields. After the new DKIM value is verified in DNS, the pending values will migrate to DKIMTextValue and DKIMPendingTextValue and Postmark will begin to sign emails with the new DKIM key. See the documentation

Send a batch of emails using a template See the documentation

Send a single email with Postmark using a template See the documentation

Send a single email with Postmark See the documentation