Complete domain email delivery

Everything your domain email needs.
Nothing extra to manage.

Receive messages in the inbox you already use, reply or send as your domain, and understand every delivery outcome from one focused service.

One domain free No new mailbox SMTP included Original sender preserved

Built for real email operations

Useful controls, not mailbox bloat.

MailerZ focuses on the delivery layer: routing, authenticated sending, visibility, and recovery around the inboxes your team already knows.

Aliases without per-user seats

Create hello@, billing@, support@, or individual addresses and route each one to the right destination.

Safer catch-all behavior

Hold unknown recipients by default, then enable catch-all forwarding intentionally when the workflow needs it.

DNS conflict detection

Find old Google, Microsoft, cPanel, or hosting MX records before they divert mail away from MailerZ.

Delivery-hop visibility

See when a message was accepted, stored, rewritten for forwarding, attempted, delivered, held, or rejected.

Works with your current inbox

Keep Gmail, Outlook, Apple Mail, Thunderbird, or another SMTP-capable client instead of learning new webmail.

Natural replies

Add your verified address as a sending identity once, then reply from the same inbox where incoming mail arrives.

A connected delivery layer

Incoming and outgoing mail stay together.

The same verified domain, addresses, authentication, and delivery records cover both sides of the conversation.

01

Verify the domain

Prove control and review the exact DNS records MailerZ expects.

02

Create receiving routes

Map each domain address or alias to the inbox that should receive it.

03

Connect authenticated SMTP

Use MailerZ credentials in Gmail, Outlook, a client, website, or approved application.

04

Monitor every outcome

Use delivery records and stored failures to resolve problems without guessing.

What features does MailerZ ship?

MailerZ ships inbound MX forwarding, envelope SRS with Header From preserved, leftover MX detection, 14-day store on Free, 90-day store on Solo through Agency, 180-day store on Unlimited, hold-or-reject unrouted mail on Free, authenticated SMTP send-as on paid plans, and delivery history. Free keeps send-as, SMTP, and API disabled. It does not host IMAP mailboxes or send bulk campaigns.

Replace the stitched-together email stack.

Start with one domain, receive in your current inbox, and send through the same MailerZ account.

Start free