How to connect Postmark and ReachInbox
Create a New Scenario to Connect Postmark and ReachInbox
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 Postmark, triggered by another scenario, or executed manually (for testing purposes). In most cases, Postmark or ReachInbox will be your first step. To do this, click "Choose an app," find Postmark or ReachInbox, and select the appropriate trigger to start the scenario.

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


Postmark

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


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Authenticate ReachInbox
Now, click the ReachInbox node and select the connection option. This can be an OAuth2 connection or an API key, which you can obtain in your ReachInbox settings. Authentication allows you to use ReachInbox through Latenode.
Configure the Postmark and ReachInbox 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 Postmark and ReachInbox 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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AI Anthropic Claude 3
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ReachInbox
Trigger on Webhook
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Webhook response

Save and Activate the Scenario
After configuring Postmark, ReachInbox, 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 Postmark and ReachInbox integration works as expected. Depending on your setup, data should flow between Postmark and ReachInbox (or vice versa). Easily troubleshoot the scenario by reviewing the execution history to identify and fix any issues.
Most powerful ways to connect Postmark and ReachInbox
Postmark + ReachInbox + Google Sheets: Tracks new email opens from Postmark and adds leads to ReachInbox, then logs the lead details into a Google Sheet for analysis.
ReachInbox + Postmark + Slack: Monitors new email bounces in Postmark and campaigns in ReachInbox for issues. When a new email bounce occurs in Postmark, or any campaign is created in ReachInbox, a Slack message is sent to a specified channel.
Postmark and ReachInbox integration alternatives

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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About ReachInbox
ReachInbox + Latenode: Automate cold outreach & personalize follow-ups at scale. Trigger campaigns from new leads, scraped data, or CRM updates. Latenode manages complex logic (filtering, scheduling, AI content creation) while ReachInbox handles email sending. Optimize deliverability and engagement in automated workflows.
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See how Latenode works
FAQ Postmark and ReachInbox
How can I connect my Postmark account to ReachInbox using Latenode?
To connect your Postmark account to ReachInbox on Latenode, follow these steps:
- Sign in to your Latenode account.
- Navigate to the integrations section.
- Select Postmark and click on "Connect".
- Authenticate your Postmark and ReachInbox accounts by providing the necessary permissions.
- Once connected, you can create workflows using both apps.
Can I automate email follow-ups based on ReachInbox engagement?
Yes, you can! Latenode allows you to trigger Postmark follow-up emails based on ReachInbox activity, increasing engagement with personalized responses triggered by user actions.
What types of tasks can I perform by integrating Postmark with ReachInbox?
Integrating Postmark with ReachInbox allows you to perform various tasks, including:
- Send personalized emails triggered by new ReachInbox conversations.
- Update ReachInbox contact properties from Postmark email data.
- Create ReachInbox tasks for bounced Postmark emails.
- Log Postmark email sends within ReachInbox contact timelines.
- Automate email sequences based on ReachInbox campaign performance.
Can I use JavaScript functions to transform Postmark data in Latenode?
Yes! Latenode’s JavaScript blocks allow you to customize data transformations between Postmark and ReachInbox beyond simple field mappings.
Are there any limitations to the Postmark and ReachInbox integration on Latenode?
While the integration is powerful, there are certain limitations to be aware of:
- Attachments from ReachInbox may require additional parsing steps.
- Real-time sync depends on webhooks availability and can have delays.
- Complex workflows may require optimization for high-volume processing.