/addresses/analyzereq_0041
DECISIONQualified lead
ACCEPT 98%
Deliverable · not disposable · ebook delivery triggered
One API for the
complete email lifecycle
Turn raw email into decisions.
Validate and understand addresses. Turn inbound mail and DMARC reports into events. Send transactional messages, classify spam, and move complete mailboxes between providers.
Analyze Receive Send Classify Migrate
Privacy by design No API payloads stored EU company
Example API traffic
EU COMPANYPRIVACY FIRST
European by origin, private by design
Your email data is processed. Not collected.
As a service of a German company, Maail is governed by European law. Address analysis and spam classification are stateless: we return the result and discard the submitted payload. For sending, inbound email and mailbox migration, only the operational data required to complete the requested task is retained.
No analysis storage
Email addresses and message content submitted for analysis are not retained after the result is returned.
EU-based company
Privacy is a core operating principle shaped by European data-protection standards.
Purpose-limited processing
Inbound, sending and migration data is handled only for the workflow you explicitly request.
Clear data boundaries
Transient intelligence endpoints stay separate from services that require operational state.
Five capabilities · one coherent API
Email infrastructure your product can reason about.
Each capability solves a concrete job. Together they cover the path from the first address entered into a form to the last message your application receives, sends or moves between providers.
01
Email address intelligence
Should this address be used in your product?
Maail looks beyond syntax and identifies what kind of mailbox you are dealing with. Use the result to qualify signups or trigger gated-content delivery, such as emailing an ebook to a reachable lead.
- Syntax, domain and MX signals
- Disposable and temporary providers
- Company, university and free-mail context
- Role account and name inference
- Reliable gated-content and ebook delivery
businesseducationpersonalroledisposableinvalid
02
Inbound email
Turn an inbox into a webhook for AI workflows.
Give a workflow its own inbound address. Maail receives the message, normalizes email complexity and delivers a structured event to your application.
- Dedicated inbound addresses
- Normalized MIME and message bodies
- Attachment metadata
- Signed webhook delivery
- Routing by address or recipient
messageheadersparticipantstexthtmlattachments
03
Send API + templates
Send product email with one API call.
Send transactional messages directly or render a reusable template with variables. Your application provides the data; Maail builds and accepts the message.
- Simple JSON send endpoint
- Reusable HTML and text templates
- Per-recipient template variables
- Idempotency for safe retries
- Message ID and accepted status
INPUT
template: invoice-ready
OUTPUT
msg_01K4… · queued
fromtosubjecttemplatevariablesmessage_id
04
LLM spam classification
Is this message spam or ham?
Send raw RFC 822 or structured message content. Maail uses an LLM to understand the intent and returns a decision your mail gateway or product can act on.
- Context-aware spam / ham decision
- Raw message or structured JSON input
- Confidence score and reason codes
- Works beside reputation and rule engines
- Suitable for Milter and inbound pipelines
INPUT
Urgent: confirm your credentials
OUTPUT
spam · 0.97 · credential_phishing
spamhamscorereason_codesmodelrequest_id
05
Mailbox migration API
Move an entire mailbox between providers.
Connect a source and destination mailbox, then let Maail copy the complete history while preserving the structure users expect. Run a final catch-up pass before switching MX records so nothing is missed.
- IMAP-to-IMAP migration
- Folders, flags and internal dates
- Resumable background jobs
- Progress and verification status
- Incremental catch-up before cutover
SOURCE →
DESTINATION
old-provider.eu → new-provider.eu
RESULT
18,420 messages · 37 folders · complete
sourcedestinationfoldersmessagesprogressstatus
The same mental model everywhere
Input. Intelligence. Action.
Maail hides transport and parsing details behind predictable resources, events and decisions.
An address or message arrives
Call the API, send a message or let Maail receive email for a configured route.
Maail produces structured meaning
Provider data, message structure and model reasoning become a clean response.
Your product decides what happens
Accept the user, reject spam, trigger a workflow or continue with a message ID.
API design
Small surface. Explicit results.
Every request uses Bearer authentication, JSON by default and a stable request ID. Raw email can also be
sent as message/rfc822.
BASE URL
https://api.maail.co/v1 Supporting
resources
POST /templatesPOST /mailbox-connectionsGET /mailbox-migrations/:idGET /messages/:id
POST
application/json
/addresses/analyzeClassify an email address and decide whether it belongs in your product.
REQUESTBearer ••••••••
{
"email": "[email protected]"
} 200 RESPONSEx-request-id: req_01K4…
{
"id": "ana_01K4S2H8",
"email": "[email protected]",
"kind": "education",
"mailbox_type": "personal",
"is_disposable": false,
"deliverability": "likely",
"person": null,
"recommendation": "accept"
}Synchronous decisionsAnalysis and classification return directly to the
caller.
Signed eventsInbound messages arrive at your application as webhook
events.
Idempotent writesSafely retry sends and route creation with an idempotency
key.
Predictable errorsMachine-readable codes with a request ID for every
failure.
Governed by European law
Process what is needed. Keep nothing by default.
Maail is a service of a German company and falls under European law. Address analysis and spam classification are stateless and their submitted payloads are not stored. Inbound, outbound and migration data exists only for the configured workflow and only as long as operationally required.
Data minimizationOnly return the fields and decisions your application
needs.
EU processingKeep handling close, explicit and contractually accountable.
Explicit retentionStorage is a product choice, never a hidden default.
Clear separationTransient analysis stays separate from workflow data.
Simple, usage-based pricing
Start small. Pay for what your product uses.
Every plan includes address intelligence, inbound routes, transactional sending, spam classification, and API access. Upgrade when volume grows.
€19/ month
For prototypes and small production workflows.
- 5,000 API operations
- 1,000 sent or received emails
- 3 inbound routes
- Community support
€79/ month
For products with recurring email workflows.
- 50,000 API operations
- 10,000 sent or received emails
- 25 inbound routes
- Email support
€249/ month
For higher-volume and business-critical systems.
- 250,000 API operations
- 50,000 sent or received emails
- Unlimited inbound routes
- Priority support and SLA options
Additional usage is billed monthly. Mailbox migrations are priced separately by mailbox size and volume.
Is Maail an email validation API?
Validation is one signal, but the product goes further. Maail classifies the mailbox and its context—such as business, education, personal, role-based or disposable—and returns a recommendation your product can use directly.
How do inbound emails reach my application?
You create an inbound route and receive an address such as [email protected]. Every message to that route is normalized and delivered as a signed email.received event to your webhook.
Can I send without using a template?
Yes. The messages endpoint accepts direct subject, HTML and text content, or a stored template plus variables. Templates are useful for repeated transactional messages but are not mandatory.
Does LLM classification replace SpamAssassin?
It can be used independently, but the strongest mail pipeline combines authentication, reputation, deterministic rules and semantic classification. Maail is the content-aware decision signal in that stack.
Can I use it from Postfix or milter.js?
Yes. Call the spam endpoint as an additional policy signal and define explicit timeout and fail-open behavior. For deeper analysis without SMTP latency, classify after accepting the message into the queue.
What is preserved during a mailbox migration?
Maail copies messages through IMAP while preserving folder structure, read and flagged states, and internal message dates. Migration jobs are resumable, expose progress and can perform an incremental catch-up pass immediately before the final provider switch.
Are email payloads stored?
Analysis and classification are transient by default. Inbound routing and sending retain only what is explicitly required by the configured workflow and delivery process.
Make email useful to your software.
Tell us what arrives, what you need to know and what should happen next.
Include your use case and expected monthly volume