Cold email infrastructure that gets you to the inbox
Our cold email deliverability consultants handle everything - warmup, authentication, monitoring, and full platform integration. Live in 72 hours.
We’ve helped 100+ clients scale their sales pipeline
“Working with the team has been a real pleasure, they are creative and professional with great execution. We had deals with multiple Fortune 500s.”
Yosef Peterseil
COO & Cofounder, Bllings.io
"Everybody's super friendly. They know what they're talking about, but have also been willing to change certain things that will appeal to how we want to handle certain aspects of our emails. It was really like a good partnership and a collaboration."
Arica Rosenthal
Co-founder and COO
“Hypergen now accounts for over half of our generated revenue & has played a huge role in our 300% growth this last year”
Jordon Rowse
CEO & Cofounder, Set 2 Close
“Alex and his team helped us refine our ICP and test messaging. We’ve grown from 3–4 to 14 leads per week with a ~60% win rate. They’re fully committed and constantly testing new strategies with us!"
Peter Durham
Vice President of Sales, Prezzee
“We got like 60 leads in the first month and that was only 3-4k contacts. We have upgraded to their 20k contacts per month package. Can’t wait.”
Jonathan Sturgeon
Founder, Dingus & Zazzy
“Hypergen’s email expertise is unmatched. 95% of the agents we engaged came from their email nudges. They’ve been a key part of a system that works.”
Eric Bramlett
Owner of Bramlett Residential
Is cold email infrastructure the bottleneck in your outreach?
Your emails keep ending up in spam
You've got a solid list and good copy, but open rates are in the gutter. Most of the time, it's not the message, it's that your emails never actually made it to the inbox.
Your authentication isn't set up properly
SPF, DKIM, DMARC: skip these and inbox providers don't trust you. Your emails get flagged, filtered, or quietly rejected before anyone ever sees them.
Your hosting isn't built for cold outreach
Most email hosting is designed for internal comms, not outbound campaigns. Using the wrong setup means poor sender reputation before you've even started.
You're sending from your main domain
It feels like the obvious choice, but it's a risky one. One bad campaign and you've damaged the domain your whole business runs on, including client emails and proposals.
New inboxes, but no warmup plan
Fresh inboxes sent straight into cold outreach get flagged fast. And building a sender reputation takes weeks of gradual sending, but most teams either skip it or don't know it's needed.
You only find out something's wrong when it's too late
No monitoring means no warning signs. By the time open rates drop and replies dry up, your domains are already damaged and recovery is slow.
What is cold email infrastructure, and how does it affect your results?
It's the foundation your outreach runs on
Cold email infrastructure is the technical setup behind every email you send: your sending domains, inbox configuration, DNS authentication (SPF, DKIM, DMARC), warmup process, and deliverability monitoring. It's what determines whether your emails land in primary inboxes or disappear into spam before anyone sees them.
Where most B2B teams get it wrong
If your campaigns are underperforming, the issue is almost never your subject line. It's usually a technical one: missing authentication, a domain that wasn't warmed up properly, or sending volume that outgrew the setup. Most B2B teams don't find out until the damage is already done.
What we actually fix
As your cold email deliverability consultants, we build and manage the whole system for you. New domains, full DNS configuration, warmed inboxes, platform integration with tools like Smartlead, Lemlist, and Apollo. Live in 72 hours and monitored continuously so you never fly blind.
Trusted by leading outreach teams
Our team empowers top outreach teams to connect with more prospects, streamline communication, and drive measurable results.
Inbox placement rate
Fully warmed & ready
Deliverability monitoring
Inboxes managed
Everything your cold email infrastructure needs, handled by deliverability consultants who manage 2,600+ inboxes
We take care of:
Domain purchasing and registration
We register and configure your secondary sending domains to ensure maximum deliverability based on your outreach volume. If you don't have preferred domains already, we'll help you find strong, brand-aligned options that work.
DNS and authentication setup
We handle all the technical setup (SPF, DKIM, and DMARC) to ensure your emails are fully authenticated, your domains are protected, and inbox providers trust you from the very first send.
Inbox creation and SMTP/IMAP configuration
We create and fully configure your sending inboxes (two per domain) and handle all SMTP/IMAP settings so your outreach is professional, functional, and ready to scale.
Automated inbox warmup
We fully manage your inbox warmup, gradually increasing sending volume to make sure your new inboxes build a strong sender reputation and don't get flagged right out of the gate.
Done-for-you platform integration
We wire everything into your preferred outreach tool (eg. Smartlead, Lemlist, Apollo) so you can start sending without touching a single setting.
Real-time deliverability monitoring
We keep a close eye on every domain and inbox (monitoring blacklists, spam scores, and global exclusion lists in real time) and handle any deliverability issues before they start affecting your results.
Monthly performance audits
We audit your full infrastructure every month and send you a clear performance report so you always know exactly how your sending environment is performing and what, if anything, needs attention.
SOPs and best practices
We give you a full set of deliverability SOPs and sending best practices, so your team knows exactly how to keep inbox placement rates high as your outreach grows and your contact volumes increase.
Campaign strategy, copy review, and specialist access
Our Pro plan takes it further: monthly campaign strategy sessions with our GTM engineers, cold email copywriter review of your sequences, and direct Slack access to our specialists. Everything you need to not just send, but actually convert.
You take care of:
Select domains, inboxes, and inbox holders
Simply choose how many domains and inboxes you need, and provide names and profile pictures for inbox holders. We’ll handle the rest.
Close deals
With a high-deliverability system in place, proper hosting system and messaging your target can’t ignore, your team can turn the engaged leads into closed deals.
Why choose Hypergen?
We don’t just give you an inbox. We give you the expertise to actually land in primary.
Complete done-for-you setup
We handle everything so you can focus on outreach, not tech
- Domain purchasing & registration
- DNS & authentication setup (SPF, DKIM, DMARC)
- Email account creation
- SMTP/IMAP configuration
- Troubleshooting support
Expert deliverability management
We protect your sender reputation so your emails land in the inbox
- Real-time blacklist monitoring
- Spam score tracking
- Inbox placement testing
- Monthly performance audits
- Best practice SOPs included
Seamless platform integration
Your accounts ready-to-send in your outreach tool
- Instantly connects to Smartlead, Lemlist, Apollo
- Full setup handled for you
- Start sending immediately
- No technical knowledge required
Start with a free deliverability audit
Sending from your HubSpot? Not getting any responses to your campaigns? We'll audit your domains for inbox placement, blacklists, and authentication issues - then show you how we fix them.
The difference proper B2B cold email infrastructure makes
Teams without proper infrastructure see deliverability drop from 95% to under 50%
within 3–6 months of scaling.
Fully authenticated senders using SPF, DKIM, and DMARC are
2.7x more likely to reach the inbox.
Teams sending from warmed, monitored inboxes consistently hit reply rates of
5–10%, vs the 3.43% industry average.
Email rated as the most effective prospecting channel by
59% of B2B marketers.
Spam folder avoidance named as the biggest challenge by
48% of email senders.
Cold email campaigns with strong deliverability deliver an
ROI of up to 4400%.
Pick what’s best for you
Calculate your mailbox needs
Ready to start?
Get your first inbox setup this week
Cold email outreach agency with 98%+ inbox placement rates
Every result below started with infrastructure that worked properly. Here's what happened when our clients' emails actually reached the inbox.
What sets Hypergen apart
Disappointed with cold email that never lands? You’re not alone. Most B2B teams don't need more emails, they need cold email deliverability consultants who can fix the technical setup that's silently killing their results.
We make cold email simple
Cold email can be complicated, but we make it easy. Just clean infrastructure, inbox-ready domains, and emails that land where they should.
40+
Team Members
Obsessed with your success
We don’t just manage your cold email systems, we’re fully invested in your results. We treat your product or service as our own, ensuring a dedicated partnership.
We’re pros who live and breathe outbound
We’ve built high-performing systems for over 100+ clients. From setup to warm-up, we handle the tech, so your team can focus on what matters: selling.
Work with world-class talent
Our global team spans over 15 countries and includes over 40 awesome team members ready to help you build and scale successful cold email systems.
Need more firepower?
We offer a full suite of services designed to complement our cold email infrastructure and deliverability optimization, bringing in the results your team actually cares about.
Hear from happy Hypergen clients
Don't just take our word for it. Here's what clients say about Hypergen's cold email infrastructure services and how 95%+ inbox placement changed their outreach results.
"I believe we've closed at least four deals so far to date. The pipeline remains very strong. And my hope and my anticipation would be for the next year for us to hopefully maybe close somewhere between 6 to 8."
Ron Lieberman
President at Winston Dunn
"In the first couple of months, we've gotten about fifty leads. The biggest surprise we had is that at the start of the second week, we actually signed a client. And it's a good client, and we're deeply engaged with them now."
Peter Cowen
Managing Partner at Sutton Capital Partners
"Everybody's super friendly. They know what they're talking about, but have also been willing to change certain things that will appeal to how we want to handle certain aspects of our emails. It was really like a good partnership and a collaboration."
Arica Rosenthal
Co-founder and COO
"The account management team is fantastic. Very flexible - we're able to pivot campaigns pretty quickly, depending on how the results go. The team is nimble, quick, very on top of it. Really a ten out of ten team."
Mike Shay
Marketing & Sales Operations Specialist
"They were very agile and responsive, able to pivot in and out of new campaign ideas quickly. They understood our business and needs very well."
Paris Childress
CEO & Founder
"It's a great team. Very responsive. We provided a whole new strategy around who to target, and you guys adopted that 100%, and that doubled our leads once we started doing that as well. So we've had a pretty collaborative effort."
Doug Dent
CRO at Gray Falkon
“Alex and his team helped us refine our ICP and test messaging. We’ve grown from 3–4 to 14 leads per week with a ~60% win rate. They’re fully committed and constantly testing new strategies with us!"
Peter Durham
Vice President of Sales, Prezzee
“Hypergen’s email expertise is unmatched. 95% of the agents we engaged came from their email nudges. They’ve been a key part of a system that works.”
Eric Bramlett
Owner of Bramlett Residential
“Hypergen generated hundreds of leads, and we converted around 40 into clients. They’re responsive, clear, and bring deep industry expertise.”
Anthony Smith
Head of Sales, RealScale
“The way they structured their process, makes it super easy for me to follow. We’re getting 25-30 qualified leads a month and are closing 2-3 deals per month (12 in total so far).”
Ina Gavazova
Founder, Kashu Video Marketing
%201.svg)
“Hypergen now accounts for over half of our generated revenue & has played a huge role in our 300% growth this last year”
Jordon Rowse
CEO & Cofounder, Set 2 Close
“Working with the team has been a real pleasure, they are creative and professional with great execution. We had deals with multiple Fortune 500s.”
Yosef Peterseil
COO & Cofounder, Bllings.io
“We got like 60 leads in the first month and that was only 3-4k contacts. We have upgraded to their 20k contacts per month package. Can’t wait.”
Jonathan Sturgeon
Founder, Dingus & Zazzy
.webp)
“Hypergen has done a fantastic job building strong lists, copy, and executing our marketing initiatives to build our brand and business.”
Alana Kahan
President, 1706 Advisors
.webp)
Book an intro call
This is John. He can answer all of your questions that you haven't found answers to on this page. Just click the button below to book a meeting with him.
Still have questions?
Cold email infrastructure is the full technical layer that determines whether your emails reach the inbox or disappear into spam. It covers your secondary sending domains, DNS authentication records, inbox creation and SMTP/IMAP configuration, a structured warmup process, platform integration, and ongoing deliverability monitoring. Most people think it's just "setting up an email account." It's quite a bit more than that.
We get to 98%+ by combining proper DNS authentication (SPF, DKIM, DMARC), dedicated secondary domains, structured inbox warmup, and 24/7 deliverability monitoring. And every inbox is configured at the right sending ratios before a single campaign goes live. Inbox providers see a legitimate sender from day one and that trust is what keeps you out of spam, consistently.
Cold emails land in spam because of infrastructure problems, not copy problems. The most common culprits are missing or misconfigured SPF, DKIM, and DMARC records, inboxes that weren't properly warmed up before sending, and using your primary domain for cold outreach. The good news is that all three are completely fixable (and with the right setup from the start, avoidable entirely!).
Your full cold email infrastructure is live within 72 hours of getting started with Hypergen. That covers domain purchase, DNS authentication, inbox creation, SMTP/IMAP configuration, and platform integration. After that, inboxes go through an automated warmup before your first campaign launches, so your sender reputation starts strong and stays that way.
No provider can guarantee 100% inbox placement, and you should be skeptical of anyone who claims they can. Deliverability depends on authentication setup, sending patterns, list quality, and how inbox providers assess your domain over time. What we do guarantee is that your infrastructure is built and managed to the highest standard, and that's what consistently gets our clients to 95%+ inbox placement.