New from Outboundry

Cold email infrastructure priced for real volume

Q: How is this different from the mailboxes I can already buy from Outboundry?

Our Email InfrastructureMailboundry product sells you real Google Workspace and Microsoft 365 mailboxes, which is the right answer when a prospect’s filters expect a mainstream provider. Mailboundry is our own stack: cheaper per mailbox, shared or dedicated IPs, and no per-seat licence. Both cap what a single domain should carry, because that is a deliverability rule rather than a billing one. Plenty of teams run both.

Mailboundry is our own sending infrastructure, built for outbound rather than borrowed from office email. Send from IP pools we monitor, or give your workspace an IP nobody else touches, with DNS that configures itself either way. Replies from every mailbox land in one Outboundry inbox. From $0.80 per mailbox a month.

Buy mailboxes See pricing

IPDKMX+1kShared or dedicated IPs, automated DNS, ready in minutes

Mailboundry · infrastructure

Domains42

Mailboxes126

Dedicated IP1 · all mailboxes

Auth checksAll pass

Recently provisioned

mail.northgate-hq.com3 mailboxesLive

go.northgate-hq.com3 mailboxesLive

try.northgate-hq.com2 mailboxesWarming

Each domain carries up to 5 mailboxes, on monitored pools or an IP reserved for you.

Why we built it

Office email was never meant to send cold

Google and Microsoft built their mail platforms for internal teams talking to people who already know them. Cold outreach breaks every assumption behind that design, and you pay for it in inbox placement.

Unmanaged pools are not your reputation

On Google and Microsoft you share IPs with anyone holding a credit card, unscreened and unramped, so your placement moves with senders you cannot identify. A pool somebody vets, monitors and rotates behaves nothing like that.

Per-seat pricing punishes scale

Mainstream providers charge per user, because they assume one human per mailbox. Outbound needs dozens of senders, and the licence cost stops making sense long before the strategy does.

Setup is where campaigns die

Domains, records, tracking, SSL, warmup. Every manual step is a chance to get authentication subtly wrong and quietly halve your reply rate for a month before anyone notices.

Comparison

Mailboundry against Google and Microsoft

Costs shown for 200 sending mailboxes, the sort of estate a team sending at real volume actually runs.

MailboundryGoogle WorkspaceMicrosoft 365

Dedicated IP optionPer workspace, from $1.30 / mailboxShared pool onlyShared pool only

Built for cold outreachOffice emailOffice email

Automated SPF, DKIM, DMARCManualManual

Mailboxes per domainUp to 5, 3 advisedPer paid licencePer paid licence

Extra dedicated IP$50 / month, per workspaceNot offeredNot offered

SSL & domain masking

Bulk DNS across domains

Whitelabel for agencies

Time to first sendMinutesHours to daysHours to days

200 mailboxes / month$180 shared IP, annual billing$1,400 at $7 per seat$1,200 at $6 per seat

Still want mainstream mailboxes for part of your estate? Outboundry Email Infrastructure sells deliverability-ready Google and Microsoft 365 mailboxes alongside Mailboundry. Most teams at scale run both.

Shared or dedicated IPs

Choose the IP model your volume deserves

Mailboundry Shared puts you on pools we vet, monitor and rotate, with ramps enforced per sender. Below roughly 1,500 sends a month per IP that beats a dedicated IP you cannot generate enough volume to warm. Mailboundry Dedicated reserves an IP for your workspace alone, shared by every mailbox you add under it, which is the right call once volume is consistent and you want problems isolated to you. Move between the two as your sending changes.

Mailboundry Shared from $0.80, Mailboundry Dedicated from $1.30
Vetted senders, enforced ramps and monitored complaint rates on every pool
IPs allocated in the region you sell into
One dedicated IP per workspace, so every mailbox you add sends from it
Switch a workspace from Shared to Dedicated without moving domains
Add another dedicated IP for $50 a month, where others charge $100+

IP allocation

mail.northgate-hq.com198.51.100.24Dedicated

go.northgate-hq.com198.51.100.24Dedicated

try.northgate-hq.com198.51.100.24Dedicated

On Mailboundry Dedicated the IP is reserved for your workspace alone: every domain and mailbox you add sends from it, and nobody else does. On Shared, the pool is monitored and rotated, never open enrolment.

Automated DNS

SPF, DKIM, DMARC, MX and tracking, set for you

Authentication is where most cold email setups quietly break. Add a domain to Mailboundry and every record is written and verified for you, following current Gmail and Yahoo sender requirements.

SPF, DKIM and DMARC written automatically
MX and custom tracking domain configured
Records verified before the domain goes live
Re-checked continuously, not just at setup

DNS authentication

SPFv=spf1 include:_spf.mailboundry.com ~allPass

DKIMmb1._domainkey · 2048-bitPass

DMARCp=none; rua=mailto:dmarc@…Pass

MX10 mx.mailboundry.comPass

Trackinglink.northgate-hq.com · SSLPass

Domains

Bring your own domains, or buy them here

Connect domains you already own at any registrar, or search and register new ones inside Outboundry from $5.99 a year. Either way DNS is written and verified for you, with no registrar tab, no nameserver copy-paste and no waiting on someone else to press save.

Bring existing domains from any registrar, at no extra cost
Or buy new ones in-app from $5.99 a year, depending on TLD
Connected and authenticated on purchase
Transfer them out whenever you want
Up to 5 mailboxes per domain, and we advise 3

Add domains

northgate-hqSearch

getnorthgate.com$11 / yrAdd

northgate-hq.co$14 / yrAdd

northgate.email$5.99 / yrAdded

From $5.99 a year depending on the TLD, or connect domains you already own. DNS is configured the moment a domain is added.

Bulk DNS updates

Change 200 domains as easily as one

Rotating a DMARC policy or updating a tracking domain across a large estate is normally a day of clicking. In Mailboundry it is one edit applied across every domain you select.

Edit records across any number of domains
Apply a change to a workspace in one action
Every update verified after it propagates
Full change history per domain

Bulk update · 42 domains

RecordDMARC

New valuep=quarantine; pct=100

Applies to42 domains · workspace Northgate

33 of 42 updated and verified · about 40 seconds left

SSL & domain masking

Branded links that never expose your main domain

Tracking links and redirect pages served from your outreach domains, secured with SSL and masked so your primary website is never in the header of a cold email.

SSL issued and renewed automatically
Custom tracking domain per sending domain
Masked redirects to your real site
Primary domain kept out of cold sequences

Domain masking

Public linklink.getnorthgate.com/r/8fa2

Resolves tonorthgate.io/pricing

CertificateLet's Encrypt · auto-renew

SSL statusValid · 89 daysSecured

Workspaces & portability

Built for agencies, not locked to us

Separate every client into its own workspace with its own domains, IPs and billing. And because Mailboundry is infrastructure rather than a walled garden, it works with whatever you send from, while every reply still collects in one Outboundry inbox.

A workspace per client or per project
Move domains and mailboxes between workspaces
Every mailbox lands in the Outboundry unified inbox
Works with any other sending tool over SMTP and IMAP

Workspaces

Northgate Analytics42 domains · 168 mailboxes

Halden Partners18 domains · 72 mailboxes

Client · Verve Robotics9 domains · 36 mailboxes

Separate billing, separate reputation, one login.

Pricing

From $0.80 per mailbox a month

Choose Mailboundry Shared or Mailboundry Dedicated, then watch the price fall as your estate grows and as you commit for longer. No per-seat licence, no setup fee.

1–10 mailboxes$2.00per mailbox / month

11–50 mailboxes$1.90per mailbox / month

51–200 mailboxes$1.80per mailbox / month

200+ mailboxes$1.70per mailbox / month

500+ mailboxes$1.60per mailbox / month

Minimums, not contracts10 mailbox slots on either plan. One dedicated IP covers every mailbox in a workspace; extra IPs are $50 a month, against $100+ elsewhere.

Domains billed separatelyBring your own, or buy in-app from $5.99 a year by TLD, with up to 5 mailboxes each and 3 advised.

Scale either wayAdd or remove mailboxes at the start of any cycle.

Whitelabel

Resell Mailboundry as your own

Agencies and outbound partners can run Mailboundry under their own brand and domain, with every client in a separate workspace on separate IPs and separate billing. Your clients see your product; we stay invisible.

Your brand, your domain, your pricing
A workspace and dedicated IPs per client
Billing and margin handled on your terms
Same automated DNS and SSL underneath

Talk about whitelabel

Your brandinfra.youragency.com

Clients14 workspaces · 312 mailboxes

IsolationDedicated IPs per client

Outboundry visible to clientsNo

Setup

Sending in three steps

Add or buy domains

Search and register outreach domains inside Outboundry, or point ones you already own at Mailboundry.

Provision mailboxes

Choose how many mailboxes each domain needs, and the IP type. DNS records and SSL are set up for you.

Warm up and send

Mailboxes connect straight into Outboundry warmup and campaigns, or into any other tool over SMTP and IMAP.

FAQ

Mailboundry questions, answered

What exactly is Mailboundry?

Mailboundry is Outboundry’s own email sending infrastructure, built specifically for cold outreach. Instead of renting Google Workspace or Microsoft 365 seats, you get domains and mailboxes running on our platform, on shared IP pools we monitor or an IP reserved for your workspace alone that all of its mailboxes send from, with DNS authentication configured for you.

Can I use domains I already own, or do I have to buy them from Outboundry?

Either works. Connect domains you already hold at any registrar and Mailboundry writes and verifies the DNS for them, or search and register new ones in-app from $5.99 a year depending on the TLD. Domains bought through Outboundry can be transferred out whenever you want.

How is this different from the mailboxes I can already buy from Outboundry?

Our Email Infrastructure Mailboundry product sells you real Google Workspace and Microsoft 365 mailboxes, which is the right answer when a prospect’s filters expect a mainstream provider. Mailboundry is our own stack: cheaper per mailbox, shared or dedicated IPs, and no per-seat licence. Both cap what a single domain should carry, because that is a deliverability rule rather than a billing one. Plenty of teams run both.

How many mailboxes can I run on one domain?

Five is the hard limit, and three is what we advise. It is not a billing cap: loading a single domain with senders concentrates risk, so if that domain gets flagged you lose every mailbox on it at once. Spreading the same volume across more domains costs a few dollars a year more and protects the whole estate.

Do I have to log into every mailbox separately?

Each mailbox has its own credentials if you want them, so you can sign into any one directly. Day to day you should not need to: every Mailboundry mailbox feeds the Outboundry Unified Inbox, so replies from all of them, alongside your LinkedIn conversations, sit in one place.

What does an extra dedicated IP cost?

$50 a month. Infraforge and comparable providers charge upwards of $100 for the same thing. Mailboundry Dedicated gives your workspace one IP that all of its mailboxes send from, so most teams never need a second. Add one when you want to isolate a high-risk campaign or a specific client from the rest of your sending, or split a second workspace onto its own IP.

Why do dedicated IPs matter for cold email?

On shared infrastructure your sending reputation is averaged with everyone else on that IP. If another sender on the pool gets flagged, your inbox placement drops even though your own sending was clean. A dedicated IP means the only behaviour affecting your reputation is yours. On Mailboundry Dedicated that IP belongs to your workspace, so every mailbox under it builds and shares the same reputation rather than each starting from zero.

Do I have to touch DNS at all?

No. Add a domain and Mailboundry writes and verifies SPF, DKIM, DMARC, MX and your tracking records, then keeps checking them. If something drifts, you get told before it costs you replies.

Can I use Mailboundry with a tool other than Outboundry?

Yes. Mailboundry is infrastructure, not a walled garden. Mailboxes connect over standard SMTP and IMAP, so you can send from Outboundry or from any other sequencer you already use.

Is there a free trial?

No, and that is deliberate: domains, IPs and mailboxes cost real money the moment they are provisioned. You buy what you need inside the app and can scale up or down each cycle.

Can agencies resell Mailboundry?

Yes. The whitelabel programme lets you resell Mailboundry under your own brand and domain, with client workspaces separated and billed independently. Talk to us and we will set the revenue share up.

How quickly can I start sending?

Minutes. Domains are registered and authenticated automatically, and mailboxes are provisioned straight after. We still recommend running them through warmup before a campaign, which Outboundry does for you.

From $0.80 per mailbox a month

Stop sharing an IP with strangers

Buy domains and mailboxes on infrastructure built for cold outreach, on monitored pools or an IP of your own, with DNS that sets itself. Ready to send in minutes.

Buy mailboxes Book a demo

Mailboundry is part of Outboundry. One login for infrastructure, campaigns and replies.

Compare

Mailboundry against the alternatives

Honest, priced comparisons against the other cold email infrastructure providers, checked against their public pricing.

vs Infraforge vs Mailforge vs Mailpool vs Mailreef vs Maildoso vs ScaledMail