SOC 2 Type II · ISO 27001 certified

Transactional email your customers actually trust

NorthBay delivers verification codes, receipts, and security alerts with the reliability, authentication, and privacy that regulated businesses require — through one developer-friendly API.

Start for free View the API
99.99% uptime SLA No credit card required 10,000 emails free / month
NorthBay engineering and customer support team collaborating in a modern office
Delivered
verify@ · 214ms · DKIM pass
Delivery rate (30d)
99.98%

Trusted by security-conscious teams worldwide

Platform

One platform for every message that matters

From the first verification email to the final delivery receipt, NorthBay is the infrastructure layer that ensures your most important messages arrive — authenticated, encrypted, and on time.

0%
Delivery uptime SLA
0B
Emails delivered / month
0ms
Median send latency
0+
Countries served
Features

Built for the messages you can't afford to lose

Every feature is engineered around a single principle: your customer's critical email must arrive, be trustworthy, and respect their privacy.

Authenticated by default

SPF, DKIM, and DMARC are configured and enforced automatically on every domain, so inbox providers know your mail is genuinely yours.

Explore security

Deterministic templates

Version-controlled, previewable templates with typed variables and localization — no surprises between staging and production.

See templates

Real-time event stream

Delivered, opened, bounced, complained — streamed to your systems via webhooks in milliseconds, with signed payloads.

View webhooks

Suppression & compliance

Automatic bounce and complaint suppression keeps your sender reputation pristine and your lists compliant with regional law.

Compliance details

Scheduled & retried

Send at the perfect moment, in the recipient's timezone, with intelligent retry logic that never gives up on a critical message.

Delivery engine

Deliverability analytics

Understand exactly where your mail lands with per-domain reputation, inbox placement, and engagement dashboards.

Open analytics
Product

A control room for your communications

See every message, every event, and every domain's health in one considered, fast interface.

app.northbay.my.id/dashboard
NorthBay analytics dashboard showing delivery metrics
app.northbay.my.id/messages
Searchable message log interface
app.northbay.my.id/domains
Domain authentication health panel
app.northbay.my.id/templates
Template editor with live preview
Use cases

Every transactional moment, covered

NorthBay powers the essential, expected emails your customers rely on — never bulk marketing, always the messages that build trust.

Account verification

One-time codes and confirmation links delivered in under a second, every time.

Password reset

Secure, expiring reset flows with single-use tokens and audit trails.

Login & security alerts

Notify users of new sign-ins, device changes, and suspicious activity instantly.

Invoices & receipts

Deliver payment confirmations and receipts that reconcile with your billing system.

Order & shipping updates

Keep customers informed from confirmation to delivery with real-time status.

Reservations & reminders

Confirmations, changes, and timely reminders for bookings and appointments.

Support notifications

Ticket updates and response alerts that keep conversations moving.

Payment receipts

Immediate proof-of-payment with itemized detail and downloadable PDFs.

Compliance notices

Policy updates and mandatory disclosures with verifiable delivery records.

Secure data center infrastructure with server racks
Email security

Authentication that inbox providers respect

Deliverability is a security problem. NorthBay enforces the full authentication stack so your mail is provably yours — and impossible to spoof.

  • SPF & DKIM — cryptographically signed and aligned on every message, verified before send.
  • DMARC enforcement — quarantine and reject policies with aggregate and forensic reporting.
  • TLS 1.3 in transit — enforced opportunistic and strict TLS with MTA-STS support.
  • Encryption at rest — AES-256 for all stored message content and metadata.
SPF

Sender Policy Framework

We publish and maintain the DNS records that tell receivers which servers may send on your behalf.

DKIM

DomainKeys Identified Mail

Every message is signed with rotating 2048-bit keys, letting receivers verify integrity and origin.

DMARC

Domain-based reporting

Align SPF and DKIM under one policy, with dashboards that surface spoofing attempts in real time.

TLS

Transport encryption

Connections are negotiated over TLS 1.2+ with modern ciphers; strict mode blocks downgrade attacks.

Developers

Send your first email in five minutes

A REST API designed the way you'd design it yourself — predictable, idempotent, and documented to the last field.

REST API & official SDKs
Node, Python, Go, Ruby, PHP, and Java — versioned and semver-stable.
Signed webhooks
Delivery events pushed to your endpoints with HMAC signatures and replay protection.
Sandbox environment
Test the full delivery lifecycle without touching real inboxes or reputation.
Generous rate limits
Burst to 1,000 requests/second with transparent, header-based limit reporting.
Read the API reference
cURL Node Python 
# Send a verification email
curl https://api.northbay.my.id/v1/messages \
  -H "Authorization: Bearer $NB_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "from": "verify@acme.com",
    "to": "user@example.com",
    "template": "account-verification",
    "variables": { "code": "481920" }
  }'
import { NorthBay } from "@northbay/sdk";

const nb = new NorthBay(process.env.NB_API_KEY);

await nb.messages.send({
  from: "verify@acme.com",
  to: "user@example.com",
  template: "account-verification",
  variables: { code: "481920" },
});
from northbay import NorthBay

nb = NorthBay(api_key=os.environ["NB_API_KEY"])

nb.messages.send(
    from_="verify@acme.com",
    to="user@example.com",
    template="account-verification",
    variables={"code": "481920"},
)
Analytics & monitoring

Know exactly where every message lands

Deliverability isn't a guess. Track inbox placement, engagement, and reputation across every mailbox provider from a single view.

  • Per-provider placement across Gmail, Outlook, Yahoo, and Apple Mail.
  • Reputation monitoring with proactive alerts before deliverability dips.
  • Exportable reports for audits, compliance, and executive review.
Analyst reviewing deliverability charts on a monitor
Infrastructure

Global, redundant, and always on

Multi-region delivery infrastructure with automatic failover means your critical mail flows even when a region doesn't.

Global network of connected data centers at night
6

Delivery regions across the Americas, Europe, and Asia-Pacific with active-active routing.

<30s

Automatic regional failover — sending continues without manual intervention.

N+2

Redundancy on every critical path, from IP pools to signing infrastructure.

System status

Operational transparency, always

Real-time visibility into every service. Subscribe for incident updates and view 90 days of history at status.northbay.my.id.

Email delivery API Operational
Webhooks & events Operational
Dashboard & console Operational
Template rendering Operational
Analytics pipeline Operational
90-day uptime99.99%

One brief degradation in the last 90 days, resolved in under 12 minutes with zero message loss.

Subscribe to updates
Pricing

Transparent pricing that scales with you

Start free. Pay only for what you send. No per-seat fees, no deliverability paywalls, no surprises.

Monthly Annual Save 20%

Developer

Everything you need to ship your first transactional emails.

$0/ forever
  • 10,000 emails / month
  • 1 sending domain
  • SPF, DKIM & DMARC setup
  • 7-day message retention
  • Community support
Start building

Growth

For production apps that need scale, insight, and support.

$49/ month
  • 250,000 emails / month
  • 10 sending domains
  • Dedicated IP option
  • 90-day retention & analytics
  • Priority email support
Start 14-day trial

Scale

High-volume sending with advanced deliverability tooling.

$199/ month
  • 2,000,000 emails / month
  • Unlimited domains
  • Dedicated IP pools
  • 1-year retention & exports
  • Deliverability engineer
Choose Scale
Enterprise

Infrastructure that meets you at your scale

Custom volume, contractual SLAs, single sign-on, and a named deliverability team. Built for organizations where email is mission-critical.

99.99% SLASAML SSO / SCIMDedicated IPsHIPAA / BAACustom DPA24/7 support
Customers

Teams that can't afford undelivered mail

From fintech to healthcare to logistics — engineering teams trust NorthBay with their most important messages.

★★★★★

"We migrated our entire verification and receipt flow to NorthBay in a weekend. Delivery rates went from 'mostly fine' to provably 99.9%+, and the DMARC reporting caught a spoofing campaign we didn't know existed."

Elena MárquezVP Engineering, Vaultline
★★★★★

"The API is exactly what you'd hope for — idempotent, well-typed, and impossible to misuse. Our on-call engineers stopped getting paged about email a long time ago."

David OseiStaff Engineer, Meridian
★★★★★

"As a healthcare platform, compliance isn't optional. NorthBay's BAA, encryption, and audit trails passed our security review faster than any vendor we've onboarded."

Priya NairCISO, Harborstone Health
★★★★★

"Shipping notifications are the backbone of our customer experience. NorthBay's regional failover means our updates go out even during provider outages that took our old vendor offline."

Marco BianchiHead of Platform, Loopwork
★★★★★

"The deliverability dashboards paid for themselves in the first month. We can finally answer 'did the customer get the email?' with certainty instead of a shrug."

Sarah WhitfieldDirector of Ops, Cobalt
★★★★★

"Onboarding took an afternoon. The sandbox let us test our entire lifecycle — bounces, complaints, retries — before we ever touched a real inbox. Genuinely thoughtful engineering."

Tomás ReyesCTO, Северный Systems
Case studies

Outcomes worth measuring

Real results from teams who made deliverability a first-class concern.

Fintech team reviewing dashboards
+3.4pts inbox placement

How Vaultline eliminated verification failures

A fintech scaling past 40M verification emails a month cut failed sign-ups by moving to authenticated delivery.

Read story →
Logistics operations center
−62% support tickets

Loopwork's shipping updates that always arrive

Regional failover kept delivery notifications flowing through two major provider outages.

Read story →
Healthcare compliance team
11 days to compliance sign-off

Harborstone Health's fastest vendor review

BAA, encryption, and audit logging cleared security review in record time.

Read story →
Compliance & privacy

Privacy-first, and independently verified

We treat your customers' data as a liability to minimize, not an asset to exploit. NorthBay is built for the world's strictest regulatory environments.

SOC 2 Type IIAudited controls
ISO 27001Certified ISMS
GDPREU data protection
HIPAABAA available

Data residency

Choose EU or US processing regions. Your data stays where your regulations require it.

Data minimization

We store only what's needed to deliver, with configurable retention and automatic purging.

Right to erasure

Programmatic deletion APIs and a signed DPA make subject-access requests straightforward.

FAQ

Questions, answered

Everything you need to evaluate NorthBay. Still curious? Talk to our team.

No. NorthBay is purpose-built for transactional communication — verification, receipts, alerts, and notifications your customers expect and rely on. We deliberately do not offer bulk marketing sending, which keeps our sending infrastructure and IP reputation focused on high-trust, high-priority mail.
Most developers send their first email within five minutes. Sign up, verify your domain with the DNS records we generate, grab an API key, and send. Our sandbox lets you test the full delivery lifecycle before going live.
We generate the exact DNS records for your domain and verify alignment automatically. DKIM keys rotate on a schedule, and our dashboard surfaces DMARC aggregate reports so you can monitor authentication and detect spoofing attempts in real time.
Our infrastructure runs active-active across six regions with automatic failover in under 30 seconds. Sending continues without any action on your part, and no messages are lost — they're queued durably and retried through a healthy region.
Yes. Dedicated IPs are available on the Growth plan and above, with automated warm-up scheduling and reputation monitoring. For very high volume, dedicated IP pools distribute sending across multiple addresses.
Absolutely. We're SOC 2 Type II and ISO 27001 certified, GDPR-compliant, and offer a HIPAA Business Associate Agreement. Data residency controls, encryption at rest and in transit, and detailed audit logs support the strictest compliance requirements.
Every plan includes documentation and community support. Growth and Scale plans add priority email support, and Enterprise customers get 24/7 coverage with a named deliverability engineer and contractual response-time SLAs.
From the blog

Engineering, deliverability & product

View all articles
Deliverability

A practical guide to DMARC enforcement

Moving from p=none to p=reject without breaking legitimate mail — a step-by-step playbook.

Apr 18, 2026·8 min read
Engineering

Designing idempotent send APIs

Why every transactional endpoint should be safe to retry — and how we built ours.

Mar 30, 2026·6 min read
Security

What TLS 1.3 means for email in transit

MTA-STS, DANE, and how modern transport encryption protects your customers.

Mar 12, 2026·7 min read
Contact

Let's talk about your delivery

Whether you're evaluating NorthBay or scaling to billions of messages, our team is here to help.

Email us

help@northbay.my.id — we reply within one business day.

Sales inquiries

Book a demo and we'll tailor a plan to your volume and compliance needs.

Support

Existing customer? Reach our support engineers 24/7 from your dashboard.

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About NorthBay

We believe critical email is infrastructure

NorthBay was founded by engineers who spent years fighting deliverability problems at scale. We built the platform we always wanted: one that treats every verification code and receipt as the trust-defining moment it is.

Today we're a distributed team across three continents, delivering billions of messages a month for companies that can't afford for a single one to go missing. We're privacy-first by conviction, not obligation — and we're only getting started.

2019
Founded
70+
Team members
3
Continents
$42M
Series B funding
NorthBay team collaborating around a table