Email warmup and deliverability platform

Land in the inbox. Not in spam.

ZKemail warms your domains per ISP, tests where your mail lands, checks your DNS authentication and reads your MTA servers, so a deliverability problem is visible before a campaign pays for it.

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Data isolated per tenantCredentials encrypted at restTwo-factor sign-in (TOTP)
console / deliverabilityExample data

Inbox placement

Inbox5% spam · 3% missing

Per-ISP reputation

Gmail94
Outlook88
Yahoo81

Warm-up volume

Recent activity

DKIM verified · mail.example.com
Seed test finished · Gmail
Volume held for a deferral spike · Yahoo
SPF needs a change · shop.example.com
Illustration with made-up numbers and reserved example domains. Not a customer result.
The problem

Deliverability is invisible until a campaign fails

ZKemail puts the signals in one place and turns the routine fixes into steps you can review.

Before

Flying blind

  • New IPs and domains are pushed too hard before they have a reputation
  • You do not know whether mail lands in the inbox, spam or Promotions
  • MTA logs, DNS, blocklists and feedback loops live in separate tools
  • One wrong DKIM record can quietly hurt a whole sending domain

After

One console

  • Volume ramps per ISP, and breakers pause on trouble
  • Seed tests report where mail landed, per ISP
  • Reputation, bounces, deferrals and DNS findings side by side
  • SPF, DKIM and DMARC compared with what is published, with a preview before any change
Core platform

Email warmup and deliverability, in six parts

Each one covers a piece of deliverability, from the first warm-up send to the inbox. Together they share one view of your senders.

Per-ISP warm-up

Volume ramps on a schedule per mailbox provider, and a circuit breaker pauses sending when bounces or deferrals say reputation is slipping.

Inbox placement

Seed tests send tagged probes and read the seed mailboxes to report inbox, spam, deferred, bounced or missing, per ISP, IP and domain.

DNS authentication

SPF, DKIM, DMARC and BIMI are compared with what is published. Fixes are previewed first, then applied through the Namecheap or NameSilo registrar API.

MTA intelligence

Your MTA servers are read over SSH: reputation, bounces, deferrals and DSN diagnoses, with fleet actions that show what they will change before they run.

AI reputation trainer

A learning pacer suggests volume per ISP. Its output is advisory: deterministic safety limits stay in charge of what actually sends.

Competitive intelligence

A seed inbox collects what other senders mail you, then groups it by brand: subject lines, cadence and where it landed.

See each feature in detail
How it works

From a cold domain to a measured inbox in four steps

1

Connect your senders

Add your SMTP or MTA servers and your sending domains.

2

Warm up per ISP

Ramp profiles build volume gradually for each mailbox provider; breakers pause on trouble.

3

Watch every inbox

Seed tests and the MTA feed show where mail lands and why it was deferred.

4

Fix and scale

Review DNS and list findings, apply fixes you have previewed, and raise volume when the numbers allow.

Security

Built to hold other people's mail data

What the platform does today. No compliance certificate is claimed on this page.

Access

  • Two-factor sign-in (TOTP) available to every account
  • Role-based access control (RBAC) with named roles
  • Audit logs of privileged actions

Data

  • Row-level tenant isolation in the database
  • Mailbox and SMTP credentials encrypted at rest (AES-256-GCM)
  • Automatic backups

Operations

  • Circuit breakers that pause sending on trouble
  • Dry-run previews before fleet and DNS changes
  • REST API for your own tooling

Privacy policy, terms and a data-processing addendum are in preparation. Ask before you put regulated data into any system.

FAQ

Questions, answered

What does ZKemail connect to?
Your SMTP or MTA servers (MTA is read over SSH), your sending domains, and the seed mailboxes used for placement tests. DNS fixes go through the Namecheap or NameSilo registrar APIs.
Does it send my campaigns?
It sends warm-up traffic and seed-test probes. It is a deliverability console, not a campaign tool: your own campaigns keep running from your own systems.
Can I bring existing domains and IPs?
Yes. Import your sending domains and SMTP configurations; ramp profiles start from where each ISP's reputation already stands instead of from zero.
Is my data separated from other customers?
Each workspace is a tenant, and the database enforces tenant isolation at row level. Credentials are encrypted at rest and privileged actions are audit-logged.
Does the AI send mail on its own?
No. The AI pacer is advisory. Volume limits, breakers and approvals are deterministic and decide what is actually sent.
How do I get access, and what does it cost?
Three monthly plans: Starter, Pro and Enterprise, with a 7-day free trial on Starter and Pro. See the pricing page for the prices and limits, and request your trial there.

See where your mail really lands

Start a 7-day free trial to run a seed test, review your DNS authentication and start a warm-up.

Start 7-day free trialSee pricing