How to connect Instantly and Postmark
Create a New Scenario to Connect Instantly and Postmark
In the workspace, click the “Create New Scenario” button.

Add the First Step
Add the first node – a trigger that will initiate the scenario when it receives the required event. Triggers can be scheduled, called by a Instantly, triggered by another scenario, or executed manually (for testing purposes). In most cases, Instantly or Postmark will be your first step. To do this, click "Choose an app," find Instantly or Postmark, and select the appropriate trigger to start the scenario.

Add the Instantly Node
Select the Instantly node from the app selection panel on the right.

Instantly
Configure the Instantly
Click on the Instantly node to configure it. You can modify the Instantly URL and choose between DEV and PROD versions. You can also copy it for use in further automations.
Add the Postmark Node
Next, click the plus (+) icon on the Instantly node, select Postmark from the list of available apps, and choose the action you need from the list of nodes within Postmark.

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Authenticate Postmark
Now, click the Postmark node and select the connection option. This can be an OAuth2 connection or an API key, which you can obtain in your Postmark settings. Authentication allows you to use Postmark through Latenode.
Configure the Instantly and Postmark Nodes
Next, configure the nodes by filling in the required parameters according to your logic. Fields marked with a red asterisk (*) are mandatory.
Set Up the Instantly and Postmark Integration
Use various Latenode nodes to transform data and enhance your integration:
- Branching: Create multiple branches within the scenario to handle complex logic.
- Merging: Combine different node branches into one, passing data through it.
- Plug n Play Nodes: Use nodes that don’t require account credentials.
- Ask AI: Use the GPT-powered option to add AI capabilities to any node.
- Wait: Set waiting times, either for intervals or until specific dates.
- Sub-scenarios (Nodules): Create sub-scenarios that are encapsulated in a single node.
- Iteration: Process arrays of data when needed.
- Code: Write custom code or ask our AI assistant to do it for you.

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Trigger on Webhook
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Webhook response

Save and Activate the Scenario
After configuring Instantly, Postmark, and any additional nodes, don’t forget to save the scenario and click "Deploy." Activating the scenario ensures it will run automatically whenever the trigger node receives input or a condition is met. By default, all newly created scenarios are deactivated.
Test the Scenario
Run the scenario by clicking “Run once” and triggering an event to check if the Instantly and Postmark integration works as expected. Depending on your setup, data should flow between Instantly and Postmark (or vice versa). Easily troubleshoot the scenario by reviewing the execution history to identify and fix any issues.
Most powerful ways to connect Instantly and Postmark
Postmark + Instantly + Google Sheets: When Postmark detects a new email bounce, the Instantly lead associated with that email is found and the issue is logged in a Google Sheet for deliverability tracking.
Postmark + Instantly + Slack: When Postmark detects a new email bounce, the corresponding Instantly lead is identified, and a Slack message is sent to a channel alerting the team about the deliverability issue.
Instantly and Postmark integration alternatives
About Instantly
Use Instantly in Latenode to automate email outreach at scale. Connect Instantly to your CRM, database, or lead sources and build automated sequences based on triggers. Enrich data and route responses using Latenode's visual editor and JS node for custom logic — all without per-step pricing limits.
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About Postmark
Use Postmark in Latenode to automate transactional emails. Connect events from your apps to trigger personalized messages, like order confirmations or password resets. Benefit from Postmark’s deliverability, plus Latenode's visual workflow builder and flexible logic to filter events and enrich email data, ensuring accurate and timely communication.
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See how Latenode works
FAQ Instantly and Postmark
How can I connect my Instantly account to Postmark using Latenode?
To connect your Instantly account to Postmark on Latenode, follow these steps:
- Sign in to your Latenode account.
- Navigate to the integrations section.
- Select Instantly and click on "Connect".
- Authenticate your Instantly and Postmark accounts by providing the necessary permissions.
- Once connected, you can create workflows using both apps.
Can I trigger Postmark emails after new Instantly lead activity?
Yes, you can! Latenode allows triggering emails in Postmark based on Instantly lead events. Benefit from Latenode's advanced logic for precise, personalized email sequences.
What types of tasks can I perform by integrating Instantly with Postmark?
Integrating Instantly with Postmark allows you to perform various tasks, including:
- Automatically sending follow-up emails via Postmark after Instantly lead actions.
- Creating personalized email campaigns triggered by Instantly lead engagement data.
- Updating lead information in Postmark based on Instantly campaign performance.
- Sending summary reports from Instantly to Postmark for email distribution.
- Automating lead nurturing by sending targeted Postmark emails after Instantly events.
Can I use JavaScript functions within my Instantly/Postmark workflows?
Yes! Latenode enables you to add custom JavaScript code, allowing transformations and advanced logic beyond simple data mapping for Instantly and Postmark.
Are there any limitations to the Instantly and Postmark integration on Latenode?
While the integration is powerful, there are certain limitations to be aware of:
- Complex data transformations may require custom JavaScript coding.
- Real-time data synchronization depends on the API rate limits of both Instantly and Postmark.
- Handling large file attachments within Postmark emails may require optimization.