Postmark Integration

Send transactional email and track delivery events with Postmark. Connect Postmark conversations to the systems your team already uses every day. When Watch Bounce lands, react with Get Bounce or Get Inbound Message.

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Supported triggers and actions for Postmark integration

Triggers can detect changes in Postmark and run actions that can create, search or modify data inside Postmark automatically [3] — exactly how you set them.

Watch BounceTriggers when a bounce event occurs.
Watch ClickTriggers when a click event occurs.
Watch DeliveryTriggers when a delivery event occurs.
Watch InboundTriggers when inbound email is received.
Watch OpenTriggers when a open event occurs.
Watch SMTP API ErrorTriggers when an SMTP API error bounce is received.
Watch Spam ComplaintTriggers when a spam complaint event occurs.
Watch Subscription ChangeTriggers when a subscription change event occurs.
Get BounceReturns a single bounce record.
Get Inbound MessageReturns a single inbound message.
Get Outbound Message DetailsReturns details for an outbound message.
Get ServerReturns the server authenticated by the server token.
Get TemplateReturns a single template.
List BouncesRetrieves bounced recipients.
List DomainsRetrieves sender domains on the account.
List Inbound MessagesRetrieves inbound messages.
List Message StreamsRetrieves message streams for the server.
List Outbound MessagesRetrieves outbound message history.
List ServersRetrieves all servers on the account.
List TemplatesRetrieves email templates.
Create DomainCreates a sender domain.
Create Message StreamCreates a message stream.
Create ServerCreates a new server on the account.
Create TemplateCreates a new email template.
Delete DomainDeletes a sender domain.
Delete ServerPermanently deletes a server and its history.
Delete TemplateDeletes a template.
Make an API CallPerforms an arbitrary authorized API call.
Send BatchSends up to 500 emails in one call.
Send Batch With TemplatesSends a batch of templated emails.
Send EmailSends a single transactional email.
Send Email With TemplateSends email using a template.
Set Recipient ActiveReactivates a bounced recipient.
Update Message StreamUpdates a message stream name.
Update ServerUpdates server settings (full PUT semantics).
Update TemplateUpdates an existing template.

How to integrate Postmark in automation workflow?

3 simple steps to make your Postmark connected with other apps in automation workflows on WEXTL. Up to 10 minutes integration set up.

STEP 1

Select Postmark in workflow

Pick Postmark app in the workflow builder [4] - just one click to select the app.

STEP 2

Connect Postmark

When prompted, authorize access to Postmark in WEXTL once. Postmark credentials are encrypted and never shared with WEXTL. Authorization will be reused in any future API calls [3].

WEXTL wants to integrate with your Postmark account. Approve?

STEP 3

Build a workflow

Build your workflow with Postmark yourself or with WEXTL® AI Builder. Connect Postmark to any available integrations [5], or use HTTP node to go beyond them.

Postmark

How Postmark connects and integrates with WEXTL

Save and approve your credentials once — WEXTL® stores authorization information encrypted and reuses the authentication whenever Postmark app is called in workflows. That allows your communication automations to run without your attention, per defined schedule [7]. Explore documentation [6] for a detailed list of fields that Postmark supports.

Full Postmark API documentation

The following table illustrates what fields Postmark integration require during authorization flow inside our workflow builder [4].

Demonstration of Postmark connection step inside WEXTL Workflow Builder [4].

Field	Type	Help
Server TokenRequired	password	Server token from Server → API Tokens.
Account TokenRequired	password	Account token from Account → API Tokens.
Server IDRequired	text	Numeric server ID for inbound/SMTP-error server settings.

Connect Postmark to popular apps on WEXTL

Enter a name of the other app you want to sync with Postmark below. Click on selected app to explore integration options with Postmark. If the app you search for is not available in WEXTL yet, you can use HTTP node [10] instead to integrate it directly.

Example automation with Postmark integration

Select Watch Bounce trigger from Postmark - this will be a starting point in your automation. Whenever event happens in Postmark, workflow will start [7] from Watch Bounce node.

Search for Create Domain, connect it as the next step of integration sequence. You can use filters between Watch Bounce and Create Domain, so only important data pass from Watch Bounce to the next step. WEXTL gives you full control over the process of Postmark automation. All parts of workflow are visible on the canvas [4].

Postmark on WEXTL has 36 modules for combining communication automations. Explore Postmark documentation for more.

Postmark

Watch Bounce

Chatwork

Performs action

Chatwork

Triggers

Postmark

Create Domain

Demonstration of how visual Postmark automation [6] looks in WEXTL.

Frequently asked questions

Common questions about automating Postmark in your workflows.

Postmark has 8 triggers, including "Watch Bounce", "Watch Click", and "Watch Delivery", and more. Triggers are start points of the workflow, and automations may start from them.

Integration has 28 actions, including "Get Bounce", "Get Inbound Message", and "Get Outbound Message Details", and more. Refer to our Postmark Documentation for detailed inputs and outputs.

No. Most automations are built visually on the canvas by picking triggers, actions, and mapping fields. You can add custom JavaScript with Functions when advanced logic is needed — but our customers do that in rare cases [4].

Yes. Connections are authenticated per account, credentials are encrypted at rest, and you can enforce approvals and team-level access controls on any automation.

The Postmark integration on WEXTL runs directly on its vendor public API — every field name, authentication method, and rate limit is controlled by Postmark official API and covered in documentation [3]. WEXTL handles the request signing and pagination for you.

Absolutely. Where Postmark provides native webhooks, you can use instant triggers to eliminate polling delay. For custom webhooks, WEXTL offers Custom Webhook node, so you can start automation whenever Postmark or any other service sends event to webhook URL.

WEXTL is an AI-first visual canvas. The platform allows you to describe automation in plain text — and AI will wire nodes for Postmark inside the workflow builder [4]. You can also use built-in workflow nodes (AI Agent, Human in the Loop, Condition, Aggregate Results) in pair with Postmark modules to craft complex integration flows with branches, filtering, and conditional logic. There are absolutely no limits of what you can build.

References

List of sources used to gather information about the Postmark integration.

Postmark integration source code, module specs and credentials implementation.
Internal Postmark integration documentation, structured input and output parameters, scopes, and authentication methods.
Official Postmark vendor API documentation — used to verify field meanings, authentication flows, and anything our own specs don't fully capture.
WEXTL® Visual Workflow Builder, anonymized data from our technical support team.
WEXTL® Apps Library
WEXTL® Postmark App Documentation
WEXTL® Workflow Scheduler
WEXTL® HTTP node documentation

Postmark Integration

Supported triggers and actions for Postmark integration