The Gravity Forms Postmark Add-On is an official integration that replaces the unreliable default WordPress mail method (wp_mail) with Postmark’s high-deliverability API. This ensures that form notifications (like order receipts or lead alerts) actually reach the inbox instead of the spam folder.
This is EXACTLY the same product as distributed by the developer. Sales Page
Version: 1.4.0 (Latest stable as of early 2026).
Requirements: * An active Gravity Forms license (Basic, Pro, or Elite).
A Postmark Account (Free trial includes 100 emails/month; paid plans typically start at $15/mo).
Verified Sender Signature: You must verify your domain or specific “From” email address within Postmark before sending
Security: Uses API Token authentication (Account and Server tokens) rather than standard SMTP credentials for better security and speed.
| Feature | Description |
| Email Tracking | Real-time tracking of email opens, deliveries, and bounces directly within your Postmark dashboard. |
| Conditional Logic | Choose to send only certain notifications via Postmark while others use different services (or none). |
| High Deliverability | Uses Postmark’s dedicated transactional infrastructure, bypassing common server-side IP blacklisting. |
| Multiple Streams | Support for different Postmark “Message Streams” (Transactional vs. Broadcast). |
| Attachments | Fully supports sending file uploads from your forms as email attachments. |
| Resilient Sending | If the API call fails, Gravity Forms can log the error for troubleshooting, preventing “silent” form failures. |
It is worth noting that the team behind Gravity Forms recently released Gravity SMTP. Here is how they differ:
Postmark Add-On: Best if you only want Gravity Forms notifications to go through Postmark. It is lightweight and specific to your forms.
Gravity SMTP: Best if you want all WordPress emails (password resets, WooCommerce orders, and forms) to route through Postmark. This is currently included for Elite license holders.
