Subscribe — Newsletter subscriptions with multiple lists, double opt-in, and full admin UI

[maximus]

Hi everyone,

I needed a solid subscription module for a client project — something that handles multiple lists, double opt-in, and plugs cleanly into order and contact forms via a PHP API. Nothing in the directory quite fit, so I built Subscribe.

It's been running in production on a few sites since March, so the edge cases are ironed out.

GitHub: https://github.com/mxmsmnv/Subscribe

What it does:

• Multiple subscription lists with many-to-many subscriber relationships
• Double opt-in with configurable HTML email ({confirm_url}, {unsub_url} placeholders)
• Honeypot spam protection — no CAPTCHA needed
• IP-based rate limiting (configurable threshold and time window)
• One-click unsubscribe with unique token per subscription
• WireMail provider selector — works with default, SMTP, Brevo, or any WireMail module

Admin UI (Setup → Subscribers):

• Sidebar list switcher with subscriber counts
• Add/toggle/remove subscribers, create/rename/delete lists
• Search, status filter, pagination
• CSV import, JSON/CSV export per list
• Resend confirmation for pending subscribers

PHP API — drop it into any template, order form, or contact form:

$sub = $modules->get('Subscribe');
$sub->subscribe('user@example.com', $listId);

Hookable event for integrations (Telegram notifications, CRM sync, etc.):

$wire->addHookAfter('Subscribe::subscribed', function(HookEvent $event) {
    // $email, $listId, $subscriptionId
});

Ships with an Alpine.js form block ready to drop into any template.

Requirements: ProcessWire 3.x, PHP 8.0+

MIT License.