Send
Start with REST or SDK sends, then add templates, batching, scheduling, or paid REST attachments as your app grows.
Run every email job from one API.
Transactional sends, broadcasts, automations, and inbound receiving — one account, pooled across projects, ready for your code or an agent.
One workspaceFrom first send to next product
BuildREST, Node, SMTP, MCP, and OpenAPI give developers and agents a clear implementation path.
OperateTransactional sends, broadcasts, automations, templates, and receiving stay in one system.
ExpandAdd another product without adding another provider account or subscription.
Start with the job your product needs today. The same projects, keys, domains, and delivery controls stay useful as the product grows.
Pick the path
Choose the email job.
Start with the job your product has today: send, market, automate, or receive.
Send
Send from your app
Receipts, resets, verifications, and alerts over REST, the Node SDK, or the SMTP relay — with templates, batching, scheduling, and duplicate-send protection on the REST and SDK paths.
UpdateProduct updates
Audiences, broadcasts, and newsletters with one-click unsubscribe and shared suppressions.
AutomateLifecycle sequences
Audience triggers, reusable template steps, timed delays, and stop conditions your app or agent can operate.
RouteInbound by API
Receiving domains, signed email.received webhooks, and retrieval APIs for message bodies and attachments.
Find your next step
Open the docs with the right question.
These links go deeper on limits, code, and plan notes once you know the job.
Observe
Give support a clear receipt trail: recipient state, stored content, tracking events, suppression state, and signed callbacks.
Update
Send audience-backed product updates and lifecycle messages with contact state, schedules, and automations.
Connect
Keep older mailers, inbound workflows, agent keys, and simulator tests in the same account and log timeline.
Send
Ship the mail behind signups, billing, and alerts.
Use one send path for account, billing, and product flows so you can debug from one timeline.
Transactional send APISend password resets, receipts, magic links, verification, alerts, and product notifications with JSON payloads.Batch sendingSend up to 100 emails in one API call with per-recipient status payloads.TemplatesStore HTML and text templates with {{variable}} merge tags, starter templates, and send-time overrides.REST attachmentsUse a paid plan for REST attachments up to about 5 MB decoded total per send; Free, SMTP, and batch sends do not include attachments.Duplicate-send protectionReuse the same request reference for retries within 24 hours so NoticeAPI does not create another email.Scheduled sendQueue, cancel, and reschedule transactional email up to 30 days ahead.
Observe
Answer what happened to each recipient.
Search a recipient, inspect the stored body, see the stop reason, and follow the signed event back to your app.
Recipient timelineTrack accepted, delivered, bounced, complained, opened, clicked, suppressed, and unsubscribed states.Stored email contentView retained HTML, text, and preview renders for debugging and support.LogsUse the dashboard and email retrieval APIs to inspect send records, body state, and recipient events.Signed webhooksValidate event payloads with HMAC signatures before updating your app.Multiple webhook endpointsConfigure more than one HTTP receiver for delivery, bounce, complaint, tracking, and inbound events.Open and click trackingEnable optional first-party tracking by domain or per send, with event callbacks back to your app.
Protect
Keep one bad send from burning your domain.
Sender ramps, auto-pause, and suppressions run on the send path — and the simulator lets you rehearse a bounce or complaint before production traffic ever sees it.
Deliverability autopilotWatch bounce and complaint rates, ramp volume, alert operators, and pause risky workspaces when thresholds trip.Auto-suppressionBlock future sends after hard bounces, complaints, and unsubscribe events.Suppressions APIList, create, and remove suppression records for bounces, complaints, and manual opt-outs.Email sandbox testingUse simulator recipients to trigger delivery, bounce, complaint, and suppression paths before production.DKIM, SPF, and DMARCGenerate ownership, SPF, DKIM, and recommended DMARC records for production sender domains.
Dedicated IPsNot offeredNot offered. NoticeAPI manages sender safety at the application layer instead of selling IP reputation tiers.
Broadcast
Add product messaging without another messaging stack.
Keep audiences, broadcasts, and automations in the same logs, suppressions, domains, and dashboard.
Audiences and contactsManage contact CRUD, metadata upserts, subscription state, and audience membership.BroadcastsSend newsletters, changelogs, launches, and product updates to your audiences.AutomationsTrigger onboarding and lifecycle sequences with custom delays.Unsubscribe handlingAdd working unsubscribe links, List-Unsubscribe headers, and audience send opt-out behavior.Broadcast schedulingQueue, cancel, and reschedule broadcasts up to 30 days ahead.
Cold outreachNot offeredNot offered. NoticeAPI sends to people who opted in — no purchased, rented, or scraped lists.
Receive
Receive inbound replies without running a mailbox.
Inbound is API receiving for product workflows, not a human inbox. Verify domains, receive webhook events, and fetch message bodies when your app needs them.
Receiving domainsVerify custom or managed receiving domains with TXT and MX records.email.received webhooksReceive signed metadata-first webhook events for accepted inbound messages.Message retrieval APIFetch received headers, HTML, text, and envelope metadata by id.Attachment retrieval APIList and download received attachments within the documented v1 limits.
Inbox productNot offeredNot offered. NoticeAPI does not provide IMAP, POP3, webmail, shared inboxes, or helpdesk workflows.
Platform
One account for REST, SMTP, and inbound.
REST APIs, the Node SDK, the SMTP relay, scoped keys, and receiving all run under one workspace and one set of usage controls.
Core REST APIsOne documented HTTP surface for every resource your app touches, from the first send through inbound and account settings.Node SDKUse the typed TypeScript client published as noticeapi.SMTP relayPoint compatible apps at smtp.noticeapi.com:465 with implicit TLS and API key authentication.Inbound receivingRun MX receiving, email.received webhooks, and retrieval APIs from the same account.Plan-aware expansionFree is capped; Pro adds monthly expansion for email, contacts, automations, and domains; Custom is scoped manually.Agent access keysCreate scoped account keys for authorized app, deploy, and agent workflows.
Start small
Start with your first customer email.
Copy a key, verify your sending domain, and use the API, SDK, SMTP, or an agent to wire the email into your product.