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MailerZ

What it is

MailerZ is a custom-domain email delivery service that receives mail for verified domains, forwards it to existing inboxes, and sends through authenticated SMTP. Setup involves verifying domain ownership, pointing MX records to MailerZ, creating aliases and destinations, and connecting SMTP. Forwarded messages keep the original sender name and address visible while the envelope is rewritten. Its hosted Mail Box includes Inbox, Sent, and New email, along with held and forwarded streams. Delivery records show whether a message was forwarded, held, bounced, or rejected, and include codes and explanations. MailerZ works with Gmail, Outlook, Apple Mail, Thunderbird, websites, and applications that support SMTP. Message recovery lasts 14 days on Free, 90 days on paid plans except Unlimited, and 180 days on Unlimited. The free plan includes one domain and three aliases, but SMTP, API, and sending are disabled; unrouted mail is held or rejected. MailerZ is not an IMAP or POP mailbox host, permanent archive, campaign sender, or Gmail replacement. Paid plans start at $3.33/mo (annual).

For and against

For

  • Keeps original sender details visible in forwarded mail
  • Logs forwarded, held, bounced, and rejected messages
  • Works with common mail clients and SMTP apps
  • Free plan includes one domain and three aliases

Against

  • Free plan disables sending, SMTP, and API
  • Not an IMAP or POP mailbox host
  • Free message recovery lasts 14 days

The verdict

MailerZ handles custom-domain forwarding and authenticated SMTP sending while retaining delivery records. It is a routing layer, not a replacement mailbox or permanent archive.

Who it suits

MailerZ is intended for personal domains, founders, small businesses, support teams, agencies, multi-domain teams, and approved websites or apps that need email routing. It suits users who want custom-domain delivery connected to existing inboxes rather than a standalone mailbox.

Plans and prices

Free

Free

1 domain · 3 aliases · 14-day message store · 1 seat

Solo

$40a year

3 domains · 15 aliases · 90-day message store · 1 seat

Starter

$880a month, billed yearly

5 domains · 50 aliases · 90-day message store · 5 seats

Business

See the maker's page

25 domains · 200 aliases · 90-day message store · 25 seats

Agency

See the maker's page

100 domains · 500 aliases · 90-day message store · 50 seats

Unlimited

See the maker's page

Unlimited domains · unlimited aliases · 180-day message store · unlimited seats

Every plan, in full

On the record

Compliance status
MailerZ states that it is not SOC 2, ISO 27001, or HIPAA certified.mailerz.net · read 30 Sep 2026
Core service
MailerZ is a custom-domain email delivery layer that receives mail for verified domains, forwards it to existing inboxes, and sends through authenticated SMTP.mailerz.net · read 30 Sep 2026
Delivery visibility
The service records whether mail was forwarded, held, bounced, or rejected and stores delivery codes and explanations.mailerz.net · read 30 Sep 2026
DNS setup
Users verify domain ownership, point MX records to MailerZ, create aliases and destinations, and connect SMTP.mailerz.net · read 30 Sep 2026
Hosted webmail
Mail Box at mail.mailerz.net provides Inbox, Sent, and New email plus held and forwarded streams.mailerz.net · read 30 Sep 2026
Message recovery
Recovery retention is 14 days on Free, 90 days on paid plans except Unlimited, and 180 days on Unlimited.mailerz.net · read 30 Sep 2026
Product boundaries
MailerZ is not an IMAP or POP mailbox host, a permanent archive, a campaign sender, or a Gmail replacement.mailerz.net · read 30 Sep 2026
Security controls
Receiving and sending require domain verification, SMTP credentials are scoped to approved identities, and messages are stored before SMTP 250 acceptance.mailerz.net · read 30 Sep 2026
Sender preservation
Forwarded messages retain the visible original From name and address while SRS rewrites only the envelope.mailerz.net · read 30 Sep 2026
Support channels
General support is available at [email protected], with separate security, privacy, abuse, sales, billing, and partnership routes.mailerz.net · read 30 Sep 2026
Supported workflows
MailerZ works with Gmail, Outlook, Apple Mail, Thunderbird, websites, and applications that support SMTP.mailerz.net · read 30 Sep 2026
Target users
The service is aimed at personal domains, founders and small businesses, support teams, agencies, multi-domain teams, and approved websites or apps.mailerz.net · read 30 Sep 2026

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