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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
1 domain · 3 aliases · 14-day message store · 1 seat
Read 30 Sep 2026 · mailerz.net
Solo
3 domains · 15 aliases · 90-day message store · 1 seat
Read 30 Sep 2026 · mailerz.net
Starter
5 domains · 50 aliases · 90-day message store · 5 seats
Read 30 Sep 2026 · mailerz.net
Business
25 domains · 200 aliases · 90-day message store · 25 seats
Read 30 Sep 2026 · mailerz.net
Agency
100 domains · 500 aliases · 90-day message store · 50 seats
Read 30 Sep 2026 · mailerz.net
Unlimited
Unlimited domains · unlimited aliases · 180-day message store · unlimited seats
Read 30 Sep 2026 · mailerz.net
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
