Managed email deliverability for high-volume senders

You send 250,000 emails a month. How many actually reach the inbox?

Most senders never really know. They just watch open rates quietly slide and blame the copy. Boxset tells you exactly where every domain is landing, in real time, and does the work to keep it in the inbox: warmup, DMARC, reputation, and remediation, handled for you.

Free scan. No credit card. See your Internet Health Score and exactly what's holding your inbox rate down before you decide anything.

Talk to a deliverability engineer

Sending 200k+/month? Skip the DIY. Book a 30-min call, no obligation.

Live Inbox Placement
from warm-up · 7d
Boxset Live Inbox Placement — landing in the inbox across Gmail and Outlook, scored from real warm-up
The operation, run for you

Most tools hand you a score and wish you luck.

Boxset runs the deliverability work continuously: three of the things that actually move your inbox rate, included in every paid plan.

Live Inbox Placement

Know where you're landing, right now.

Your inbox placement updates itself from live warm-up activity. There's no test to remember to run. See how every domain and subdomain is actually landing, per provider, and catch a slide toward spam the same day it happens, not the day your revenue drops.

Managed DMARC delegation

Hand us DMARC. Never touch a DNS record again.

Most warm-up and deliverability tools stop at DMARC monitoring. We run the whole delegation: we receive your aggregate reports straight from the mailbox providers and move your policy forward for you: none → quarantine → reject, at the right pace, per subdomain. Real protection and compliance, without ever logging into your registrar.

Mobile app

Your deliverability, in your pocket.

A native app almost nobody in this category ships. Check every domain's health score, warm-up progress, and live placement from your phone, and get pushed the moment a domain gets blacklisted, placement slips, or a DMARC report needs you. Real revenue on the line shouldn't need a desk to feel safe.

Take the tour

Explore the platform, at your own pace.

Click through the real product — no signup, no sales call. This is exactly what you'd be running.

boxset.ai/app
Every sender on one screen.

Every sender on one screen. Health score, warmup, and inbox placement for every domain and mailbox — no tab-hopping, no spreadsheets.

How it works

One platform. Three jobs. Zero babysitting.

Boxset runs your deliverability the way a team of specialists would: measured, monitored, and always on.

1Predict

See the problem before it costs you.

Your Internet Health Score reads all five layers that decide inbox placement (Config, Reputation, Behavior, Placement, and Threat) and scores each 0 to 100. You get a single, honest number and a ranked list of exactly what to fix first.

2Protect

Lock down the foundation, automatically.

SPF, DKIM, and DMARC monitored non-stop with auto-remediation. Blacklist monitoring across dozens of major lists. Managed DMARC delegation that hardens your policy as you earn trust. The stuff that quietly kills senders, caught and corrected before it spreads.

3Deliver

Build the reputation that puts you in the inbox.

Our warmup engine builds real domain reputation through genuine seed engagement, ramping your volume safely over about 45 days, then keeping it defended for as long as you send. Live Placement confirms it's working, per provider, every day. AI coaching tells you the next best move. You send; we keep it landing.

5
deliverability layers scored, 0–100
~45 days
to a safely ramped, defended domain
Every day
Live Placement re-checks, per provider

Not sure where your domain stands?

Get a 30-minute call with a real deliverability engineer. They'll read your report, tell you what's dragging your inbox rate down, and show you exactly how we'd fix it. No sales script.

Talk to an engineer
Warmup engine

Yes, we actually warm up your domains, the right way.

Not a checkbox. A real reputation engine.

Cold domains and cold IPs get filtered. That's not bad luck. It's how mailbox providers protect their users, and it's why blasting from a fresh domain lands you in spam. Boxset's warmup engine fixes it the only way that works: real seed accounts open, reply to, and engage with your mail, teaching Gmail, Outlook, and Yahoo that people want to hear from you. We ramp your sending volume gradually over roughly 45 days, watching Live Placement the whole way, so reputation is built, not faked.

And it doesn't stop there. Reputation isn't a trophy you win once. Providers re-score you constantly, and a domain left alone slides back toward the spam folder. So when the ramp is done, the engine shifts into maintenance: it keeps genuine engagement flowing, holds your volume at full trusted levels, and catches any drift the same day, cycle after cycle. Warmed, then kept warm.

Day 1 · protected ramp beginsDay ~45 · full trusted volumeOngoing · reputation maintained
~45 days
to a warmed, trusted domain
Then maintained
reputation defended continuously, never left to quietly decay
Confirmed live
every day, per provider, in your dashboard

Warmup is the metered spine of every paid plan. Add domains as you scale.

Proof

The number that matters is the one in the inbox.

1.5% → 57% open rate.

One client came to us landing almost nowhere, a 1.5% open rate. After Boxset warmed and managed their domains, opens peaked at 57% and have held steady at 20 to 30% since. Same list. Same offers. The email finally reached people.

Why I built Boxset

I found out the hard way that you can do everything "right" and still fail. We were carefully warming up Google mailboxes, while actually sending from a completely different platform. The warmup and the sending never lined up, so none of that reputation counted, and deliverability quietly cratered. The day we fixed that mismatch, everything changed. Boxset exists so serious senders never lose revenue to an invisible problem like that again.

Founder, Boxset.ai

In their words

(more coming as clients go on record)

[ Real testimonial coming ]

Name · Company · Role

[ Real testimonial coming ]

Name · Company · Role

[ Real testimonial coming ]

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We'd rather leave these blank than invent them. Real quotes from named clients are being added as they come in.

Pricing

Priced on the volume you send, not per domain like everyone else.

Warmup sessions are the spine of every plan (~$48 each). Live Inbox Placement, managed DMARC delegation, and the mobile app are included in every paid tier, never an upsell. Pick the tier that matches how many domains you run.

MonthlyAnnual Save 20%

Free

$0

See the truth for free: deliverability scan, Internet Health Score, and ongoing monitoring with blacklist alerts. No warmup.

  • Deliverability scan + IHS
  • 1 domain monitored
  • Blacklist alerts
  • No warmup
Start free

Solo

$47/mo

For the focused sender getting one domain right.

  • 1 warmup session
  • 2 domains
  • 2 mailboxes
  • Live Inbox Placement
  • Managed DMARC delegation
  • Mobile app
Choose Solo

Starter

$147/mo

For teams sending real volume across a few domains.

  • 3 warmup sessions
  • 5 domains
  • 5 mailboxes
  • Inbox placement testing
  • Everything in Solo
Choose Starter
Most popular

Pro

$297/mo

For high-volume operations that can't afford a spam day.

  • 6 warmup sessions
  • 15 domains
  • 15 mailboxes
  • AWS SES + Google Postmaster
  • Seed network access
  • Everything in Starter
Choose Pro

Elite

$497/mo

For serious senders running deliverability at scale.

  • 10 warmup sessions
  • 25 domains
  • 25 mailboxes
  • Priority support
  • Spam rescue
  • Everything in Pro
Choose Elite

Sending 200k to 300k+ a month across many domains? A booked call is faster than a form. Talk to a deliverability engineer →

Boxset Mobile

Watch every domain from your phone.

The Boxset app puts your whole deliverability operation in your pocket.

Open the app and see it at a glance: every domain's health score, warmup progress, and live inbox placement. Get pushed a notification the second something needs you: a new blacklist hit, a placement drop, a DMARC report worth knowing about. Approve, monitor, and stay ahead from anywhere.

  • Live health score & placement for every domain
  • Warmup progress in real time
  • Instant alerts: blacklist, placement, DMARC
  • Built for teams who move
Boxset iOS app, your health dashboard
FAQ

Straight answers.

Stop guessing where your email lands.

Run the free scan, see your Internet Health Score and every issue holding you back, then let Boxset warm, protect, and deliver your domains, continuously and fully managed. If you're sending serious volume, an engineer will get you there faster.

Free scan · no credit card · see your score before you decide.