Messaging infrastructure that actually delivers.
One platform for email, SMS, voice, and WhatsApp — cold outreach, newsletters, OTPs, and transactional traffic — with full control over deliverability, sender reputation, and customer data.
- Delivered
- 99.98%
- Median TTFB
- 42ms
- Channels
- 4
Trusted infrastructure · Our clients & partners
Platform
Everything you need to run production messaging.
A single control plane for email, SMS, voice, and WhatsApp — designed for teams who take deliverability, security, and compliance seriously.
SMTP Relay
Drop-in relay for Postfix, Nodemailer, Django, Rails, or any SMTP client. Full ESMTP + TLS 1.3.
Deliverability First
Warmup schedules, bounce classification, feedback loops, and per-domain reputation tracking.
DKIM / SPF / DMARC
One-command key generation, automatic signing, and alignment reports across every sender.
SMS & WhatsApp
Route SMS through your own carrier gateways. Native WhatsApp Business API for two-way messaging.
Programmable Voice
SIP trunking, TTS, IVR, and call recording backed by your own Asterisk or FreeSWITCH.
Advanced Queue Management
Per-channel priority queues, retry policies, and rate limits enforced at the edge.
Real-time Analytics
Per-domain, per-carrier, and per-channel telemetry with sub-second dashboards and signed webhooks.
Privacy & Ownership
Message bodies, recipients, and logs stay on your servers. Nothing leaves your perimeter.
Why PingPlain
Built for teams that outgrew hosted senders.
Cost, control, and privacy stop being trade-offs once your messaging stack is truly yours.
Own Your Reputation
Dedicated IPs, sender identities, and warmup curves you fully control. Never share fate with unknown tenants on someone else's platform.
Fast Delivery
Optimized queues, connection pooling, and MX-aware routing keep transactional traffic under 100ms end-to-end at millions of messages per day.
Simple Infrastructure
One binary or one Docker image. Deploy on your own VPS, bare metal, or Kubernetes cluster in under ten minutes.
Architecture
A pipeline you can actually reason about.
No opaque black boxes. Every hop from your application to the recipient is inspectable, replayable, and yours.
Application
your API, backend, or CRM
SMTP / REST
port 25 · port 587 · HTTPS
PingPlain
queue · router · signing · auth
Postfix · SIP · Gateway
outbound engines per channel
Internet
MX · SS7 · carrier · Meta
Inbox / Handset
recipient device
Benefits
One platform. Every channel. Full ownership.
Stop stitching together three different SaaS providers, four dashboards, and someone else's reputation.
- Unified inbox: email, SMS, WhatsApp and voice events on a single timeline.
- Per-tenant IP pools and sender identities without shared reputation.
- Real-time bounce, complaint, and delivery webhooks with signed payloads.
- First-class Postfix, Nginx, Docker and Kubernetes integrations.
- GDPR- and HIPAA-friendly: message contents never leave your servers.
- Predictable pricing — pay for the VPS, not per email sent.
Delivery health
last 24 hours · all channels
2.4M
+3.1%
SMS
184k
+7.6%
61k
+12%
Voice
9.2k
+1.4%
throughput
msgs / min
Comparison
PingPlain vs. hosted SMTP + CPaaS.
Same reliability, without renting your reputation from someone else.
Use cases
Wherever a message needs to arrive.
From startup MVPs to regulated enterprise stacks — PingPlain adapts to the channel and the constraint.
Cold Outreach
Warm your own IPs, rotate domains, and enforce per-recipient throttles without touching a spreadsheet.
Newsletters
Send to millions of subscribers with list hygiene, one-click unsubscribe, and DMARC-aligned From headers.
SaaS Applications
Transactional email, SMS OTPs, and WhatsApp receipts through one API — with signed delivery webhooks.
Agencies
Isolated tenants, per-client dashboards, and white-label branding across every messaging channel.
Customer Support
Two-way WhatsApp and SMS threads, routed to your agents with full conversation history.
OTP & Voice Verification
Global SMS OTPs with SIM-swap detection plus programmable voice fallback for high-value events.
Developers
REST, SMTP, and gRPC APIs. TypeScript, Go, Python, PHP SDKs. Local mailhog-style dev mode included.
Internal Infrastructure
Alerting, monitoring hooks, and audit notifications routed through the same platform as customer traffic.
FAQ
Frequently asked questions.
Everything technical decision-makers usually want to confirm before adopting a messaging platform.
What is PingPlain?
How is PingPlain priced, and what should we budget?
Is PingPlain compliant with GDPR, HIPAA, and TCPA?
How long does migration take from Twilio, SendGrid, or Postmark?
Can I use my own domain and numbers?
How does deliverability work?
How do SMS, WhatsApp, and voice work end-to-end?
One platform for every message you send.
Get started with PingPlain in under ten minutes. Keep every message, every log, and every ounce of sender reputation on infrastructure you trust.