Newsletter SparkPost is a specialized WordPress extension that integrates the SparkPost mail delivery service with the Newsletter core plugin. It provides a dedicated API connection to ensure high deliverability for high-volume email campaigns. This extension is designed for users who require a professional SMTP alternative for sending large quantities of mail.
WPExclusive members get access to Newsletter SparkPost as part of a full plugin and theme library — plans from $9.99/month. See the full Newsletter collection →
What Is Newsletter SparkPost?
Newsletter SparkPost is developed by Newsletter and is an email delivery plugin for WordPress. It belongs to the email category on WPExclusive, alongside other tools for professional communication. SparkPost functions as a bridge that moves email processing away from your web server and onto SparkPost’s delivery infrastructure.
This extension solves the common issue of newsletter emails being marked as spam or hitting shared hosting sending limits. It is built for developers and site owners who need the reliability of a developer-centric delivery service.
Newsletter SparkPost Features
The feature set is built around a secure API connection and high-speed mail processing.
High-Speed Turbo Send
The plugin includes a Turbo Send option that enables concurrent sending to reach greater speeds. You can select between 2 to 10 mail processors to significantly decrease the time it takes to clear your queue. In optimal environments, this feature can achieve up to a 10x delivery speed increase while respecting your hourly email limits.
API Integration and Security
Newsletter SparkPost uses the SparkPost API rather than traditional SMTP, offering better security and detailed transmission data. Configuration requires a specific API key with suppression list and transmission permissions enabled. Using an API connection reduces the overhead on your WordPress database compared to standard mailing methods.
Domain Validation & Deliverability
The extension allows you to validate your sending domain directly within the workflow. By setting up specific DNS records through SparkPost, you ensure that your newsletters pass SPF and DKIM checks. This configuration minimizes the risk of your emails ending up in the junk folder of your subscribers.
Pricing
Check current pricing on the Newsletter SparkPost sales page — WPExclusive members access it as part of their plan.
| Plan | Price | Sites | Includes |
|---|---|---|---|
| WPExclusive Membership | From $9.99/month | Unlimited | Newsletter SparkPost + full library |
For developers managing multiple sites, a WPExclusive membership covers Newsletter SparkPost plus hundreds of other plugins and themes — usually less than one premium license.
Latest Version
The plugin receives regular updates to ensure compatibility with the SparkPost API and the latest WordPress core. WPExclusive updates plugin files promptly after each release, ensuring you have the latest performance optimisations and security patches.
How to Install
- Download the Newsletter SparkPost .zip from your WPExclusive member account
- In WordPress: Plugins → Add New → Upload Plugin
- Select the .zip and click Install Now → Activate
- Navigate to the Newsletter plugin delivery settings and choose SparkPost.
- Insert your SparkPost API Key and perform a connection test.
Use Cases
Large-Scale Email Marketing Campaigns
Site owners sending to thousands of subscribers can utilize the email infrastructure of SparkPost to avoid server blacklisting. Newsletter SparkPost handles the connection flawlessly to ensure every message is dispatched via professional hardware.
High-Frequency Transactional Notifications
If your site generates frequent updates that must arrive instantly, the Turbo Send feature helps clear the sending queue rapidly. This is ideal for news portals or busy community sites where delivery speed is critical.
Agencies and Developers Managing Multiple Client Sites
Agencies can standardize their client email delivery using SparkPost across all managed sites. This provides a consistent reporting and delivery method that is easily managed via a WPExclusive membership.
vs Alternatives
| Feature | Newsletter SparkPost | Newsletter Mandrill |
|---|---|---|
| Delivery Method | SparkPost API | Mandrill API |
| Concurrent Sending | Up to 10 processors | Internal Queue |
| Suppression Control | Native API | Webhooks Required |
| Starting Price | Premium Addon | Premium Addon |
| Available on WPExclusive | ✅ Yes | ✅ Yes |
Browse the full email plugins on WPExclusive →
Pros and Cons
✅ Strengths
- Up to 10x delivery speed increase with Turbo Send options.
- Professional API integration reduces reliance on local SMTP.
- Direct suppression list management via the API key permissions.
⚠️ Limitations
- Requires a validated sending domain before any emails can be sent.
- Turbo Send performance depends on your web hosting’s ability to handle concurrent PHP processes.
- Developer auto-updates require an active license key. WPExclusive publishes updates manually when new versions are released.
Is Newsletter SparkPost GPL Licensed?
Yes. Newsletter SparkPost is distributed under the GNU General Public License (GPL), the same license that governs WordPress itself. GPL gives any user the legal right to use, study, share, and redistribute the software. This is the legal framework that makes WPExclusive’s membership model possible.
WPExclusive distributes 100% original, unmodified files, the same release the developer publishes. No injected code, no alterations, no security risks.
Get Newsletter SparkPost on WPExclusive
WPExclusive membership starts at $9.99/month, $87/year, or $149 lifetime, giving you Newsletter SparkPost plus every plugin and theme in the library, on unlimited sites.
Explore the full Newsletter collection → or browse all WordPress plugins →
Frequently Asked Questions
What does Newsletter SparkPost do?
Newsletter SparkPost is an extension that connects The Newsletter Plugin to the SparkPost delivery service. Newsletter SparkPost allows users to send high-volume email campaigns via API instead of standard SMTP, ensuring better deliverability and speed.
Is Newsletter SparkPost free?
This is a premium extension. While a free version of the core Newsletter plugin exists, Newsletter SparkPost is available via WPExclusive membership starting from $9.99/month.
What is the latest version of Newsletter SparkPost?
The plugin is actively maintained — WPExclusive members always receive the most current release shortly after the developer publishes it.
How much does Newsletter SparkPost cost?
Retail pricing is usually part of a premium bundle from the developer. Via WPExclusive, Newsletter SparkPost is included in plans from $9.99/month.
Is it legal to use Newsletter SparkPost via WPExclusive?
The plugin is GPL licensed, which explicitly permits redistribution. WPExclusive provides original, unmodified files, fully within GPL terms.
What are the best alternatives to Newsletter SparkPost?
Effective alternatives include Newsletter Mandrill and Newsletter Mailgun integration. All are available on WPExclusive within the same membership, allowing you to choose the delivery service that fits your budget.
