Description

With Webhooks, HTTP/HTTPS calls to external endpoints are configured when Newsletter confirms a subscription, records an unsubscription, or completes sending a campaign. This additional module schedules the trigger as soon as possible, sends subscriber or newsletter data via standard POST or raw JSON, and helps developers integrate the email marketing flow with proprietary systems.

Main Features of Webhooks

  • Monitored events
    Triggers calls when there is a subscription, unsubscription, or newsletter sent.
  • POST transmission
    Sends data via standard POST or encoded JSON body.
  • Subscriber data
    Forwards id, email, name, lists, and profile fields.
  • Campaign data
    Sends subject, HTML message, sends, openings, and clicks recorded.
  • Configuration testing
    Generates simulated data to validate the endpoint before real use.

Benefits of Webhooks

  • Custom integration
    Connects Newsletter to internal systems without changing the main flow.
  • Less immediate processing
    Schedules calls to avoid slowness during subscriptions and unsubscriptions.
  • Clearer debugging
    Logs failures in Newsletter logs for technical analysis.
  • External automation
    Allows triggering CRMs, APIs, and custom routines from real events.

Who Is Webhooks Suitable For?

  • Developers who need to connect Newsletter to external systems.
  • Marketing teams relying on automations based on subscriptions and campaigns.
  • WordPress site administrators with proprietary data flows and integration.

How to Download Webhooks

Webhooks is available for download on this page. To put it live, upload the file via the panel under Plugins > Add New > Upload Plugin, activate the addon, and keep Newsletter installed so events are processed correctly.

Webhooks fits projects that need to transform Newsletter events into technical communication with other applications. By working with endpoints, POST formats, and execution logs, the extension gives more control over custom integrations without requiring changes to subscription, unsubscription, or standard campaign sending.

Frequently asked questions

Is Newsletter Webhooks GPL-licensed?

Yes. Newsletter Webhooks is distributed under the GPL (GNU General Public License). You may legally use, modify and redistribute it on as many sites as you want.

Can I use Newsletter Webhooks on multiple sites?

Yes. You can install Newsletter Webhooks on as many sites as you want. Only automatic updates through Ultrapack Auto Updater have a limit: from 3 to 80 sites, depending on the plan.

How much does Newsletter Webhooks cost at Ultrapack?

Newsletter Webhooks costs US$2.99 as a single purchase, and it is also included in the subscription plans starting at US$12/mo (VIP I).

Does Newsletter Webhooks include updates?

Yes. The current version of Newsletter Webhooks is 1.1.3, published at Ultrapack on Sep 7, 2026. Subscribers update straight from the WordPress dashboard with UAU (Ultrapack Auto Updater).

Is Newsletter Webhooks scanned before publication?

Yes. Every version of Newsletter Webhooks goes through a malware scan (ClamAV and YARA rules, at UltraHub) before it is published.

What are the requirements for the plugin Newsletter Webhooks?

Requires WordPress 6.1 or higher and PHP 7.4 or higher. Tested up to WordPress 7.1.