The Mailbox Solution
You Can Depend On
Microsoft mailboxes that are built for cold outreach across Outlook and Google
Who this is for
Built for operators who need stability and reliability
If cold email is how you and your clients generate revenue, InfraSuite is the piece that keeps your business stable while you focus on generating revenue and getting your clients great results
Cold email agencies
Running multiple client accounts and need reliable Outlook capacity without building or babysitting infrastructure yourself
In house outbound teams
Outbound is a core channel for pipeline and you want Outlook mailboxes that can keep up with quota without constant replacements
Go-To-Market Specialists
You own the GTM motion across channels and need mailboxes that support outbound without adding more ops or risk
Problems we solve
When mailboxes are unstable, your whole business slows down and your clients churn
The real bottleneck isn’t campaign ideas. It's emails landing in spam, burned domains, constant warmup resets, and a decaying sender reputation that keeps pushing launches back
What this feels like today
Replies taper off way too quickly
Your lists are targeted, copy is solid, but replies slow down after only a couple of campaigns. You're guessing whether it is targeting, timing, or something broken behind the scenes.
Domains keep getting replaced
You're rotating mailboxes and domains more than you are launching campaigns... every time you reset, you lose warmup history and have to rebuild trust and reputation with ESPs from scratch.
Client fulfillment pressure
You bring on a new client, sequences are ready, but you are waiting on vendors to deliver mailboxes. Now you have to have the hard conversation with your client about pushing launch dates instead of showing results.
Inconsistent support quality from your vendor
When you reach out for help, you feel stuck in limbo… watching time pass, second-guessing what went wrong, and carrying that low-level anxiety because you have no clear sense of if or when things will actually be fixed.
What changes with InfraSuite
Deliverability stops being the mystery variable
Our IP-protected mailbox setup keeps inboxes stable, so when performance declines right away, you know it isn’t a deliverability or mailbox-related problem.
You aren't constantly rebuilding
We follow a strict provisioning protocol built from managing tens of thousands of Microsoft mailboxes. Instead of churning through domains, you keep a stable fleet that gains history and trust over time.
Campaign launch is the main event again
With 24-hour mailbox fulfillment baked into the process, capacity is ready when a new client signs, so sequences go live on the dates you promised instead of getting pushed back while vendors catch up.
Support you can actually relax about
We treat support like part of the infrastructure: fast turnaround, clear answers, and calm, competent help when something looks off. Clients know their mailboxes are in good hands, so questions get resolved quickly instead of turning into ongoing stress.
Add InfraSuite into the stack you already use
Connect mailboxes straight into your sending tool
We provide you with Microsoft mailboxes, you just plug them into your existing tools and start warmup
Your sequencer
Instantly, Smartlead, EmailBison, PlusVibe
Keep using the tools you already rely on to build, schedule, and track campaigns.
Where emails land
Inbox with Outlook and Google
Keep sends landing in real inboxes on Outlook and Google instead of disappearing into spam.
What this turns into
More revenue for you and your clients
Turn more of your sends into replies, meetings, and revenue across the accounts you manage.
What running outreach with InfraSuite feels like
From new mailboxes to booked meetings
InfraSuite stays under the hood. You keep using the tools you already trust while your mailboxes warm, send, and generate replies at scale.
We deliver Outlook mailboxes
You plug them into your sequencer
Warmup runs in your sending tool
You launch campaigns
Emails land in leads inboxes
Meetings and revenue follow
InfraSuite keeps the mailboxes healthy so you can produce meetings and revenue for yourself and your clients.
See How Much You Save
Move the slider to see a price comparison with average mailbox vendors.
Other vendors would cost roughly $300.00 more per month for fewer mailboxes and less send.
That’s more than $3,600 per year in savings.
Simple, transparent pricing plans
One-time setup fee. No hassle. Fast delivery.
We provide warmup settings and recommended best practices. You provide the domains.
We provide warmup settings and recommended best practices. You provide the domains.
We provide warmup settings and recommended best practices. You provide the domains.
Sending 2M+ emails per month?
For cold emailers doing serious volume, owning infrastructure can start to make sense. We can map out a transition path where you graduate from the subscription model into an owned environment that we continue to maintain on your behalf.
About InfraSuite
InfraSuite started from a simple goal... give serious outbound operators a sending layer they do not have to second guess. We have lived the pressure of client campaigns, fixed issues late at night, and seen how fragile things feel when your inbox capacity is built on moving pieces you do not control.
Over time that turned into a clear mission. Build a mailbox environment that feels calm, predictable, and boring in the best way possible... something you can rely on while you focus on lists, offers, and revenue instead of wondering whether your mailboxes will keep up.
InfraSuite is designed to be the conservative part of your outbound stack. Multiple layers of protection, a sending profile tuned for cold email, and a mindset that favors long term stability over short term spikes. You keep ownership of strategy and tooling... we focus on keeping the underlying capacity steady.
In a landscape where tools, pricing, and tactics change quickly, our job is to be the thing you can treat like core holdings. A mailbox provider that is quiet, dependable, and built for operators who plan to be here for a long time.
Frequently Asked Questions
Trusted by outreach teams worldwide
"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."
Gainbridge Advisory
"We received our mailboxes in less than 11 hours which is refreshing to see. The experience so far as been great, highly recommend InfraSuite if you need a solid provider."
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 actually be ready when our campaigns go live."
Deal Process Partners