Installed for you Runs on your own VPS · your server, your data, your SMTP
Email marketing software · SMTP rotation · Campaign analytics
Email marketing software
that sends through your own SMTP
Mail Boxer is email marketing software that runs on your own server. Choose a plan and our team installs it on your VPS. Then connect your own SMTP, Amazon SES, Mailgun, Brevo or any other provider, import and clean your list, check the spam score, and send with server rotation, limits and working-hours scheduling.
- Installed on your VPS for you
- Your data stays on your server
- Any SMTP server or provider
- Live reports for clients
Features
Everything you need to send campaigns from your own servers
Mail Boxer gives you the parts of an email platform you would otherwise build yourself: list cleaning, a campaign editor, server rotation, scheduling and reporting.
Use your own SMTP servers, and rotate them
Add your own VPS with Postfix, Amazon SES, Mailgun, SendGrid, Brevo, Postmark, Gmail, Microsoft 365, Zoho or any other SMTP. Mail Boxer spreads each campaign across your servers and keeps every one inside its limits.
- Round robin, weighted, least-used, random or failover rotation
- Hourly and daily limits per server and per campaign
- Connection test, test email and reputation check (blacklists, PTR, SPF, DKIM, DMARC)
Import, clean and deduplicate your lists
Upload a CSV, TXT or TSV file, or paste addresses. Mail Boxer finds the email and name columns on its own, turns extra columns into merge tags, removes duplicates and invalid addresses, and keeps unsubscribed and bounced contacts out of every send.
- Auto-detects the delimiter, header and columns
- Removes contacts that already appear in other lists
- Export any list to CSV
Write the email, then check its spam score
Design your email in a visual editor with merge tags and a preheader, or import HTML, DOCX, ZIP or TXT. Before you send, run about 35 SpamAssassin-style checks, plus an optional real SpamAssassin score through Postmark’s free API.
- Send a test to up to five addresses
- Personalize with merge tags like {{first_name}}
- Duplicate, pause, resume or cancel any campaign
Send at the right time, in any time zone
Start right away or schedule a campaign for later, in any time zone, and limit sending to the working days and hours you choose. Outside that window sending pauses and then picks up again on its own.
- Working days and hours window
- Skip contacts already emailed by earlier campaigns
- A separate sending worker that can scale out
Analytics
Reports you can share with your clients
See how each campaign did, and send your client a read-only link to the live numbers.
Opens, clicks and CTOR
Open rate, click rate and click-to-open rate for every campaign.
Timeline and top links
When people opened and clicked, and which links worked best.
Per-server results
Delivery, bounces and opens for each SMTP server you used.
Live share links
Read-only report links for clients, with an optional password.
Deliverability
Built for permission-based email
Mail Boxer protects your servers’ reputation with good-sender rules that are switched on from day one.
Warm-up for new accounts
Daily limits start low and grow over the first week.
Automatic pause
Campaigns stop when bounces or complaints get too high.
One-click unsubscribe
RFC 8058 unsubscribe links and a compliance footer in every email.
Suppression list
Unsubscribes and hard bounces are never emailed again.
Bounce and complaint webhooks
Results from your providers flow back automatically.
Custom tracking domain
Track opens and clicks on your own domain.
Opt-in lists only
Imports that look bought or scraped are rejected.
Two-factor login
Protect every account with an authenticator app.
How it works
From purchase to first campaign in four steps
You buy the plan, we do the installation.
1
Choose a plan
Pick the plan that fits your list and buy it here.
2
We set it up
Our team contacts you and installs Mail Boxer on your VPS.
3
Connect your SMTP
Pick a preset, test the connection and set your limits.
4
Import, write and send
Import an opt-in list, check the spam score, then follow opens and clicks live.
Who it is for
Made for teams that send to their own lists
Marketing agencies
Run campaigns for several clients and share live reports with each one.
Businesses with their own servers
Put your VPS or provider account to work with a proper campaign tool.
Newsletter publishers
Send regular issues to subscribers who asked to hear from you.
Teams of any size
Owner, admin and member roles, with email invites for your team.
Plans
Pick the plan that fits your list
Every plan includes every feature and installation on your VPS. Plans differ in contacts, monthly emails, SMTP servers and team members. Pay monthly, or yearly and get 2 months free. Prices in US dollars.
Starter
$29 / month
or $290 a year, pay yearly
For a growing list
- 10,000 contacts
- 50,000 emails a month
- 3 SMTP servers
- 2 team members
- Installed on your VPS
Recommended
Growth
$59 / month
or $590 a year, pay yearly
For agencies and busy senders
- 50,000 contacts
- 250,000 emails a month
- 10 SMTP servers
- 5 team members
- Installed on your VPS
Pro
$119 / month
or $1,190 a year, pay yearly
For large lists and teams
- 200,000 contacts
- 1,000,000 emails a month
- Unlimited SMTP servers
- 15 team members
- Installed on your VPS
FAQ
Mail Boxer questions, answered
Yes. Mail Boxer runs on a VPS that you own. After you buy a plan, our team contacts you to install and set it up there.
Yes. Mail Boxer sends through SMTP servers you connect: your own VPS, or a provider such as Amazon SES, Mailgun, SendGrid, Brevo or Postmark. It includes a guide and a script to turn a VPS into a mail server. If you need one, see our SMTP servers.
No. Mail Boxer is for people who agreed to hear from you. Imports that look bought or scraped are rejected, and every account accepts the Acceptable Use Policy.
Choose round robin, weighted, least-used, random or failover. Mail Boxer spreads the campaign across your servers, skips any server that reaches its hourly or daily limit, and retries failed sends on another server.
Yes. Each campaign report can be shared as a read-only live link, with an optional password.
On your own VPS. Your lists, campaigns and reports stay on your server. SMTP passwords are stored encrypted with AES-256-GCM, and you can turn on two-factor login.
Send your next campaign from your own server
Pick a plan and our team will set Mail Boxer up on your VPS.
