Email forwarding + SMTP sending, together

Custom domain email in Gmail
without Workspace.

Forward custom domain email to Gmail without Google Workspace. Receive hello@yourdomain.com in the Gmail you already use, keep the original sender, then reply or send as that domain through MailerZ SMTP. No Workspace seat. No extra mailbox.

Start free See two-way email ↓
No credit card One domain free Send-as on paid
AM
FROMAda Millerada@studio.com
Received
MailerZ Two-way
YOUR DOMAIN ADDRESShello@yourdomain.com
● From preserved● Reply enabled● SMTP on paid
Inbox
M
WORK FROMYour Gmailreceive · reply · send
Original sender preserved Built-in SMTP sending Reply from your inbox Delivery records

Plain definition

What is MailerZ?

MailerZ is a custom-domain email delivery layer operated by Secuno LLC. It accepts inbound MX for a domain you control, rewrites only envelope MAIL FROM with SRS, and forwards mail to Gmail or Outlook without changing Header From. Paid plans add authenticated SMTP so the same domain can reply and send.

  1. 01 · ReceiveInbound MX

    Your domain’s MX points at MailerZ. Mail arrives for addresses you actually configured.

  2. 02 · RouteEnvelope SRS only

    Only envelope MAIL FROM is rewritten. Visible From, subject, and body stay intact.

  3. 03 · DeliverInbox + SMTP

    Forward to Gmail or Outlook. Paid plans add authenticated SMTP to reply and send.

What it is
  • Custom-domain receiving
  • Transparent forwarding
  • Authenticated sending on paid plans
What it is not
  • Not a mailbox or IMAP host
  • Not a campaign sender
  • Not SOC 2 certified

Transparent by design

Same sender in.
Same sender out.

If the sender is ada@studio.com, Gmail shows ada@studio.com in the visible From field—exactly the same. MailerZ never replaces it with its own address.

  • Original name and email address stay visible
  • Subject, message body, and attachments stay intact
  • MailerZ handles routing quietly in the background
AM
ORIGINAL FROMAda Millerada@studio.com
GmailInbox
AM
FROMAda Miller<ada@studio.com>
Same address
Your project files

Hi, I’ve attached the final project files for you.

ORIGINALada@studio.com=GMAIL FROMada@studio.com Exact match
Gmail Reply
REPLYING FROMSupport Teamsupport@yourdomain.com

Thanks, Ada — the files look great.

DELIVERED TO ADA
S

Support Teamsupport@yourdomain.com Verified sender

Re: Your project files

Thanks, Ada — the files look great.

REPLY FROMsupport@yourdomain.com=RECIPIENT SEESsupport@yourdomain.com Same identity

Built-in SMTP sending

Reply normally.
Send professionally.

Connect MailerZ SMTP once, then reply or start new messages from your existing inbox. Your recipient sees your domain address—not Gmail, MailerZ, or a relay address.

  • Send as any verified address on your domain
  • Works with Gmail, Outlook, email clients, websites, and apps that support SMTP
  • No separate SES, Mailgun, Postmark, or self-hosted SMTP server
  • Authenticated sending and delivery records are managed in one place
Receive and send with MailerZ

Complete domain email delivery

Receive, reply, and send
without blind spots.

MailerZ combines transparent inbound forwarding, authenticated outbound SMTP, delivery visibility, and recovery—while you keep the inbox you already use.

Send as your domain

Use authenticated MailerZ SMTP to send new messages as hello@, support@, or any verified address—without another sending provider.

Reply from your inbox

Reply from Gmail, Outlook, or another SMTP-capable inbox while recipients continue to see your professional domain address.

One service for both directions

MailerZ handles incoming MX delivery and outgoing SMTP, so you do not need to combine a forwarder with SES, Mailgun, Postmark, or your own server.

Keep the real sender

Original From, Subject, body and attachments stay intact. Only the SMTP envelope is rewritten with SRS.

Recover failed forwards

Every accepted message is stored with its delivery code and a plain-English reason—14 days free, 90 days paid.

See every delivery hop

Know whether mail was forwarded, held, bounced or rejected. No more invisible forwarding failures.

Safer catch-all

Unknown addresses are held by default instead of becoming a spam cannon. You decide what gets forwarded.

Catch broken DNS early

MailerZ detects leftover Google, Microsoft or old-host MX records before they silently steal deliveries.

Use the inbox you love

Receive and reply from Gmail, Outlook, or any existing inbox. No second webmail app or unnecessary mailbox seat.

One-time setup

One domain.
Both directions.

MailerZ gives you the receiving and sending records, verifies the complete path, and keeps both incoming and outgoing delivery activity visible.

Set up your domain
01

Add and verify your domain

Enter a domain you control and choose the inbox where incoming messages should arrive.

02

Connect receiving and sending DNS

Add the MX, verification, and sender-authentication records MailerZ provides. Old or conflicting records are flagged.

03

Create your addresses

Map hello@, support@, billing@, or any address to the people and inboxes that should receive them.

04

Connect MailerZ SMTP

Add your sending identity to Gmail, Outlook, an email client, website, or app. Then reply and send as your domain.

Delivery observability

Every message leaves
a clear trail.

When someone says “I sent it,” see exactly what happened—from SMTP acceptance to the destination inbox.

Message deliveredToday, 10:42:18 UTC

Received

250 accepted

Stored

Message secured

SRS rewritten

Header untouched

Forwarded

Gmail MX

Delivered

250 2.0.0 OK

FROMAda <ada@studio.com>
TOhello@yourdomain.com
DESTINATIONinbox@gmail.com
SMTP250 Delivered

Fits how you already work

Professional email without
another inbox to manage.

Use your domain everywhere while people continue working from the tools and workflows they know.

Personal domain

Receive you@yourdomain.com in your everyday inbox, then reply and send with the same professional identity.

Founders and support teams

Route hello@, sales@, and support@ to the right people while every reply stays on-brand.

Agencies and multiple domains

Keep client domains, aliases, delivery history, and sending identities organized in one service.

Websites and applications

Connect forms, approved applications, or email clients to authenticated SMTP without maintaining a mail server.

1 · RECEIVEYour domain address→2 · WORKGmail or Outlook→3 · REPLY OR SENDMailerZ SMTP→4 · DELIVERYour identity preserved

The complete, leaner fit

One email layer.
No stitched-together stack.

Get domain receiving and sending without combining a basic forwarder, a separate SMTP provider, and another per-user office suite.

Original sender preservedSend as your domainReply from current inboxDelivery historyFailed message recoveryLeftover MX detectionSafe catch-all controlsSeparate SMTP provider neededNew mailbox requiredStarting price
NoNo$0

Basic forwarders

SometimesUsually notNeeds another SMTPLimitedUsually not—RiskyYesNo$0–$5

Workspace suites

LimitedLimited—NoYes$7+/user

Clear capacity-based pricing

Start free. Upgrade when
a real limit becomes relevant.

Choose by domains, aliases, seats, storage, and outbound volume. Free keeps send-as, SMTP, and API off. Every important limit is visible before signup.

Free

For testing MailerZ or running one lightweight personal domain.

$0/month

Included at signup

Start free
Plan capacity
  • 1 domain · 3 aliases
  • 1 seat · 14-day store
  • Send-as disabled
  • SMTP and API disabled
  • Unrouted: hold or reject
Best for small teams

Starter

For small teams operating several domains and shared addresses.

$6.67/month

Billed yearly

Choose Starter
Plan capacity
  • 5 domains · 50 aliases
  • 5 seats · 90-day store
  • 2,000 outgoing/month
  • 10 outgoing/hour
  • SMTP and API enabled

Business

For established teams managing many domains and users.

$15.83/month

Billed yearly

Choose Business
Plan capacity
  • 25 domains · 200 aliases
  • 25 seats · 90-day store
  • 4,000 outgoing/month
  • 15 outgoing/hour
  • SMTP and API enabled

Agency

For high-volume agencies and multi-brand operations.

$32.50/month

Billed yearly

Choose Agency
Plan capacity
  • 100 domains · 500 aliases
  • 50 seats · 90-day store
  • 8,000 outgoing/month
  • 25 outgoing/hour
  • SMTP and API enabled

Solo

For one person who needs more aliases, sending, and recovery.

Annual only
$3.33/month

Billed yearly

Choose Solo
Plan capacity
  • 3 domains · 15 aliases
  • 1 seat · 90-day store
  • 1,000 outgoing/month
  • 5 outgoing/hour
  • SMTP and API enabled

Unlimited

For operators who need uncapped domains, aliases, and seats.

$82.50/month

Billed yearly

Choose Unlimited
Plan capacity
  • Unlimited domains and aliases
  • Unlimited seats · 180-day store
  • 100,000 outgoing/month
  • 300 outgoing/hour
  • SMTP and API enabled

Solo is yearly only. Starter, Business, Agency, and Unlimited support monthly or yearly billing. Annual billing includes two months free. Unlimited is $99 per month or $990 per year. Free shows send-as, SMTP, and API as disabled in the account panel.

Compare every plan limit

Clear product boundaries

The right tool when you need a delivery layer—not another mailbox.

MailerZ handles custom-domain receiving, routing, replies, authenticated SMTP, delivery history, and recovery. It is not webmail, a permanent archive, or a bulk-marketing platform.

Deep dive: email forwarding Aliases and catch-all controls Delivery history and recovery Full service scope and limitations Compare email approaches

Security by design

Your mail is handled
like infrastructure.

MailerZ accepts and sends mail only for verified domains and approved identities. Incoming messages are stored before acceptance, and delivery activity remains traceable.

Explore security
Verified domains only

Unknown and unverified recipients receive SMTP 550.

Stored before acceptance

250 is sent only after file and database storage.

Audited access

Message-body access and important account actions are restricted and recorded.

Authenticated sending

SMTP credentials send only through approved domain identities—never as an open relay.

Common questions

Everything you need
to know.

Need a technical answer? Read our detailed guides or contact the team.

Read documentation

No. MailerZ is the email delivery layer for your domain: inbound MX forwarding plus authenticated outbound SMTP. You keep using Gmail, Outlook, or another inbox you already know.

Your first domain is free

Receive, reply, and send
as your domain.

Connect your domain once, keep the inbox you already love, and let MailerZ handle both directions of email delivery.

Start with your domain No credit card · One domain · Forwarding + SMTP