Description
Short version: Replace one-email-per-user dispatch with high-volume batch API sends via Mailgun or SendGrid — dramatically improving speed, reliability, and scalability for large bbPress or BuddyBoss communities.
What this actually does
- Stops 1 wp_mail() call per user.
- Groups up to 1000 recipients per API request.
- Builds proper REST payloads for Mailgun or SendGrid.
- Offloads delivery to your email provider instead of your web server.
By default, WordPress sends one email per user. On active communities, that means dozens, hundreds, or thousands of PHP executions in a single request — which can trigger timeouts, server throttling, or killed processes.
Bulk Mailer changes the dispatch layer. Instead of looping through users with wp_mail(), it builds batched recipient lists and hands the delivery to Mailgun or SendGrid via their API.
The result: faster dispatch, fewer timeouts, and significantly improved stability under load.
Documentation:
How it works
- bbPress Notify (No-Spam) generates the notification event.
- Bulk Mailer intercepts the dispatch process.
- Recipients are grouped (up to 1000 per request).
- A properly structured REST body is sent to Mailgun or SendGrid.
- Your provider handles the distribution.
Why this matters
- Prevents PHP execution timeouts.
- Reduces server load spikes.
- Improves reliability on high-traffic forums.
- Built for large communities running bbPress or BuddyBoss.
Requirements
- bbPress Notify (No-Spam) (free plugin)
- Mailgun or SendGrid API credentials
- Forums powered by bbPress or BuddyBoss
FAQ
Does this change email content?
No. It changes how emails are dispatched — not how they are generated.
Will this improve delivery rates?
Delivery quality depends on your email provider and reputation. This add-on improves dispatch efficiency and stability.
Is this necessary for small forums?
If your site sends only a few notifications at a time, you may not need it. It is designed for communities where scale causes performance strain.
Support
Email support is included with an active license. For troubleshooting, include your site URL and versions of WordPress, bbPress/BuddyBoss, bbPress Notify (No-Spam), and your email provider configuration.


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