Thunderbolt API.
Guaranteed inbox placement for your application's transactional payloads. Thunderbolt bypasses traditional shared mail servers, utilizing dedicated IP pools, automated domain authentication, and a robust REST API to deliver password resets, receipts, and alerts instantly.
Developer-first integration.
REST API v2Drop our endpoint into your backend and authenticate via Bearer token. We handle the MIME-type assembly, base64 attachment encoding, and asynchronous queuing.
curl -X POST https://api.nexservices.shop/v2/thunderbolt/send \
-H "Authorization: Bearer nx_live_**************" \
-H "Content-Type: application/json" \
-d '{
"to": ["user@clientdomain.com"],
"from": "billing@yourdomain.com",
"subject": "Invoice #4092 - Payment Receipt",
"template_id": "tpl_8f92j3n",
"variables": {
"amount": "NGN 45,000",
"link": "https://yourdomain.com/invoice/4092/pdf"
}
}'Delivery Mechanics.
Cryptographic Domain Authentication
Inbox providers aggressively filter unsigned mail. Thunderbolt automatically generates 2048-bit RSA keys for DKIM signing. We provide exact CNAME and TXT records to inject into your DNS manager, achieving strict alignment for SPF and DMARC policies within minutes.
Real-Time Event Webhooks
Stop guessing if your application's emails arrived. Configure an ingestion URL in your dashboard, and our servers will POST cryptographically signed JSON payloads the millisecond an event occurs.
Algorithmic IP Warmup
When you lease a dedicated IP on the Enterprise tier, our engine throttles your initial outbound volume based on recipient ISP constraints (Gmail, Outlook, Yahoo). This prevents early rate-limiting and builds a pristine sender reputation autonomously over 30 days.
Volume-Based Pricing
10,000 Emails
Shared high-reputation IP pool. Ideal for startups and MVP testing.
100,000 Emails
Priority queuing, 30 days of log retention, and full webhook access.
Enterprise
Dedicated IPs, custom reverse DNS, and algorithmic warmup scheduling.
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