The most reliable cold email infrastructure
Domains, DNS authentication, provisioning and warmup—handled in one place, or automated with our API.
Trusted by 140+ agencies, GTM engineers & startups
InfraSuiteAdd sending domains and track them through setup to ready-to-use mailboxes.
| Redirect | Tags | Mailboxes | Status | Progress | Nameservers | Actions | ||
|---|---|---|---|---|---|---|---|---|
| engineerdemand.co25 mailboxes · Agency | InfraSuite.ioMask | Agency | 25 | Optimizing | Nameservers | ns1.example.com ns2.example.com | ||
| morewaygtm.comPre-warmed25 mailboxes · GTM · Pre-warmed | InfraSuite.ioMask | GTM | 25 | Active | Ready to use | ns1.example.com ns2.example.com | ||
| moredemand.co25 mailboxes · Agency | InfraSuite.ioMask | Agency | 25 | Active | Ready to use | ns1.example.com ns2.example.com | ||
| amplifymeetings.com25 mailboxes · GTM | InfraSuite.ioMask | GTM | 25 | Active | Ready to use | ns1.example.com ns2.example.com | ||
| buildpipeline.coPre-warmed25 mailboxes · Agency · Pre-warmed | InfraSuite.ioMask | Agency | 25 | Active | Ready to use | ns1.example.com ns2.example.com | ||
| hellodemand.co25 mailboxes · GTM | InfraSuite.ioMask | GTM | 25 | Active | Ready to use | ns1.example.com ns2.example.com |
Plan your infrastructure
Tell us how much you want to send. We’ll do the mailbox math.
$45/month
1 domain × $45 USD
All emails shown above are available for outreach. Warmup traffic does not use this capacity.
Why InfraSuite
Every mailbox arrives on real Microsoft infrastructure, authenticated, isolated and ready to use.
Licence + isolation
Microsoft 365Genuine Microsoft licences are allocated inside separated infrastructure.
Domain + DNS
Domains, hosting and DNS records are configured as one provisioning flow.
OutlookReady to send 
AWS
CloudflareDomain hostingAccess + delivery
Real Outlook mailboxes, measured routing and a three-click portal workflow.
OutlookSign in to Outlook
Reported performance. Individual results vary.
Plug-and-play integrations
Import your mailboxes into Instantly, Smartlead, or any Microsoft-compatible sequencer. Start warmup in the same tool you run campaigns from — nothing new to learn.
Your sequencer
InfraSuiteOutlook mailboxes
Lands in inbox
Outlook
GoogleOutlook → Outlook and
Outlook → Google tuned.
What this turns into
for you and your clients
Pricing
| Included | Your infrastructure | Most popularInfraSuite$45/domain Priced per domain — scale to as many as you need | NewPre-warmed$50/domain Already warmed up. Start sending right away | CustomLet's talk Tell us your volume and we'll build a plan around it |
|---|---|---|---|---|
| Mailboxes | 25 Mailboxes /Domain | 25 Mailboxes /Domain | Mailboxes scaled to your volume | |
| Daily sending capacity | 250 Emails/Day | 250 Emails/Day | Scaled to your volume | |
| Monthly sending capacity | 5,500 Emails/Month | 5,500 Emails/Month | Scaled to your volume | |
| Deliverability | 98.5%+ deliverability | 98.5%+ deliverability | 98.5%+ deliverability | |
| DNS setup | Complete DNS setup | Complete DNS setup | Complete DNS setup | |
| Warmup | Email warmup configuration | Pre-warmed, ready to send on day 1 | Email warmup configuration | |
| Mailbox importing | Free mailbox importing into: | Free mailbox importing into: | Free mailbox importing into: | |
| API | Create & manage mailboxes via API | Create & manage mailboxes via API | Create & manage mailboxes via API | |
| Support | Premium Slack support channel | Premium Slack support channel | Premium Slack support channel | |
| Replacements | Fast & easy domain/mailbox replacement | Fast & easy domain/mailbox replacement | Fast & easy domain/mailbox replacement | |
| Browse domains | Book a Call | |||
$45/domain
Priced per domain — scale to as many as you need
$50/domain
Already warmed up. Start sending right away
Let's talk
Tell us your volume and we'll build a plan around it
Referral program
Know someone else running cold email? Refer them and earn free mailboxes that expand your sending capacity — no extra spend required.
A fellow agency owner, an outbound operator, anyone running cold email who needs reliable sending infrastructure.
Once they're live on a plan, the referral is confirmed — no hoops, no complicated tracking.
Free mailboxes get added to your account, expanding your daily send capacity at zero extra cost.
See the full program details — earn rates, how long you keep your mailboxes, and how to get started.
Learn more about the InfraSuite referral programFAQ
Everything you need to know before you build your infrastructure.
What clients say
Trusted by 140+ Agencies, GTM Engineers & Startups
140+
Outreach teams
InfraSuite“Reply rates have held steady at 3-5% since we moved a good portion of our mailboxes to InfraSuite. Most of our clients campaigns are now built off of Microsoft mailboxes so we're happy to finally have some stability.”
“Reply rates have held steady at 3-5% since we moved a good portion of our mailboxes to InfraSuite. Most of our clients campaigns are now built…”
Gainbridge Advisory“We received our mailboxes in less than 11 hours which is refreshing to see. The experience so far has been great, highly recommend InfraSuite if…”
Orrison & Co.“Every inbox is still at 100% and we're only halfway through warmup. It's the first time I haven't been worried about whether the mailboxes will…”
Deal Process Partners“Moved from a different provider to Infrasuite a few months ago. Materially cheaper at our volume, deliverability held strong as we scaled…”
Arbitrage Partners“For the first time, I've had real success with cold email since switching to InfraSuite. Already planning to scale up and get my clients set up…”
Evimero Partners
