When you send emails at scale, you’re operating two separate systems.
One handles your campaigns – the copy, audience, timing, and metrics. The other handles delivery – the infrastructure underneath that determines whether your emails actually land in inboxes.
Most teams conflate these. They assume that picking a sending tool solves the delivery problem. It doesn’t. A tool gives you the ability to send. Infrastructure determines whether those sends land.
Managed Email Infrastructure is the second system. It’s the sending layer that sits underneath your campaigns. Think of it like the postal service for your email program – you write the letters, but we manage the routes, vehicles, and reputation that gets them delivered reliably.
What’s Included in the Service
Managed Email Infrastructure includes everything required to send email at scale without damaging your sender reputation or getting filtered.
Domains and Subdomains
You’re sending from somewhere. We deploy the aged domains you already own – properties that typically have the same age as your company but aren’t actively used. These come with credibility earned over years.
We architect a multi-subdomain structure that lets you scale throughput while maintaining sender identity coherence under inspection. Multiple subdomains let you reach higher volumes without fragmenting your identity.
Pre-warmed IP Addresses
IPs have reputation just like domains. A brand new IP has no sending history, which means ISPs will be skeptical of your traffic.
We handle IP warmup from the start – gradually increasing sending volume over 14 days to prove you’re a legitimate sender. You skip the painful phase where every domain bounce or rejection threatens your entire program.
Our IPs come pre-warmed, meaning they’ve already proven themselves across diverse traffic patterns.
Authentication Setup
SPF, DKIM, and DMARC aren’t checkboxes. We review your DNS line by line. This goes beyond “does it pass authentication?”
We’re looking at coherence – whether your sender identity can withstand inspection from enterprise security teams, not just pass automated filtering.
Active Monitoring and Intervention
Bounce codes, rejection patterns, placement trends, gateway signals – we’re watching all of it.
When something deviates from expected performance, we don’t wait for you to notice. We catch it, diagnose it, and fix it. If an IP or domain starts underperforming, we replace it immediately without pausing your sends.
Ongoing Domain and DNS Audits
We don’t review your setup once and declare it done.
Periodic audits catch creeping issues before they become problems. ISP standards evolve, mailbox behavior shifts, and new filtering signals emerge. We stay ahead of those changes.
This is infrastructure-as-a-service for email. You focus on who you’re reaching and what you’re saying. We focus on the layer underneath that ensures your message gets there.
Why This Separation Matters
Without a managed infrastructure, you’re solving two problems simultaneously: running your campaign while also maintaining sender reputation.
That means every deliverability issue becomes a campaign issue. Every IP problem cascades into failed outreach. You’re context-switching between optimizing copy and diagnosing why a domain got reputation-banned.
Here’s how this plays out:
Your team sends emails using fresh infrastructure. Within days, bounce rates spike noticeably. Your first instinct is to blame targeting or copy. But the real problem is that your new IP hasn’t proven itself yet, and Gmail’s reputation system is applying throttling.
Now you’re investigating DNS records when you should be A/B testing subject lines. Your sales team can’t run their program because your infrastructure team is firefighting.
With managed infrastructure, you have a clean separation.
Your team controls campaigns, copy, targeting, and timing. You get metrics on open rates, reply rates, and response quality. The infrastructure layer handles the technical credibility problem underneath, so your failures are about messaging, not delivery.
When bounce rates change, it’s not your problem to solve. It’s ours. We’re investigating it, adjusting it, replacing infrastructure if needed – while your sends continue uninterrupted.
This separation is also about security and operational clarity.
You’re not managing domains and IPs yourself, which means fewer moving parts to manage, fewer attack surfaces to secure, and a clearer chain of responsibility if something goes wrong.
Everything is documented, monitored, and backed by a service agreement that defines what happens when something breaks.
The Scaling Angle
Most email services compete on what they send. We compete on where your emails land – and more importantly, they stay sent from infrastructure that holds up under scrutiny from Fortune 500 IT teams.
As you scale from hundreds to thousands to tens of thousands of emails per day, infrastructure becomes your constraint, not your tool choice. That’s what managed infrastructure solves.
It lets you scale campaigns without scaling your operational burden around sender reputation.
Here’s a concrete example:
A B2B SaaS company starts sending hundreds of emails per day from a single domain. It works fine. But when they try to scale significantly, their new domain gets throttled by Gmail, their bounce rate jumps, and ISPs start applying stricter filtering.
They hire someone to manage DNS, monitor reputation, respond to blacklist incidents, and audit sending patterns. That person becomes a significant part of their ops burden.
With managed infrastructure, that person spends their time optimizing campaigns instead of managing IPs.
This is why teams in high-scrutiny industries – healthcare, finance, insurance, legal, publicly traded companies – rely on it.
They can’t afford to be learning IP reputation management while running their outreach program. They need infrastructure that works, period. Their security teams won’t accept the risk.
So they outsource it to specialists who do this every day.
We’d love to learn more about your business, email deliverability and outreach goals, and see if we might be able to help.
Whether you have questions about what we do, how Protocol works, or you’d just like to pick our brains on some of our best practices, we’d be happy to chat.
Schedule a call with our Revenue Director, Chrisley Ceme.
When you send emails at scale, you’re operating two separate systems.
One handles your campaigns – the copy, audience, timing, and metrics. The other handles delivery – the infrastructure underneath that determines whether your emails actually land in inboxes.
Most teams conflate these. They assume that picking a sending tool solves the delivery problem. It doesn’t. A tool gives you the ability to send. Infrastructure determines whether those sends land.
Managed Email Infrastructure is the second system. It’s the sending layer that sits underneath your campaigns. Think of it like the postal service for your email program – you write the letters, but we manage the routes, vehicles, and reputation that gets them delivered reliably.
What’s Included in the Service
Managed Email Infrastructure includes everything required to send email at scale without damaging your sender reputation or getting filtered.
Domains and Subdomains
You’re sending from somewhere. We deploy the aged domains you already own – properties that typically have the same age as your company but aren’t actively used. These come with credibility earned over years.
We architect a multi-subdomain structure that lets you scale throughput while maintaining sender identity coherence under inspection. Multiple subdomains let you reach higher volumes without fragmenting your identity.
Pre-warmed IP Addresses
IPs have reputation just like domains. A brand new IP has no sending history, which means ISPs will be skeptical of your traffic.
We handle IP warmup from the start – gradually increasing sending volume over 14 days to prove you’re a legitimate sender. You skip the painful phase where every domain bounce or rejection threatens your entire program.
Our IPs come pre-warmed, meaning they’ve already proven themselves across diverse traffic patterns.
Authentication Setup
SPF, DKIM, and DMARC aren’t checkboxes. We review your DNS line by line. This goes beyond “does it pass authentication?”
We’re looking at coherence – whether your sender identity can withstand inspection from enterprise security teams, not just pass automated filtering.
Active Monitoring and Intervention
Bounce codes, rejection patterns, placement trends, gateway signals – we’re watching all of it.
When something deviates from expected performance, we don’t wait for you to notice. We catch it, diagnose it, and fix it. If an IP or domain starts underperforming, we replace it immediately without pausing your sends.
Ongoing Domain and DNS Audits
We don’t review your setup once and declare it done.
Periodic audits catch creeping issues before they become problems. ISP standards evolve, mailbox behavior shifts, and new filtering signals emerge. We stay ahead of those changes.
This is infrastructure-as-a-service for email. You focus on who you’re reaching and what you’re saying. We focus on the layer underneath that ensures your message gets there.
Why This Separation Matters
Without a managed infrastructure, you’re solving two problems simultaneously: running your campaign while also maintaining sender reputation.
That means every deliverability issue becomes a campaign issue. Every IP problem cascades into failed outreach. You’re context-switching between optimizing copy and diagnosing why a domain got reputation-banned.
Here’s how this plays out:
Your team sends emails using fresh infrastructure. Within days, bounce rates spike noticeably. Your first instinct is to blame targeting or copy. But the real problem is that your new IP hasn’t proven itself yet, and Gmail’s reputation system is applying throttling.
Now you’re investigating DNS records when you should be A/B testing subject lines. Your sales team can’t run their program because your infrastructure team is firefighting.
With managed infrastructure, you have a clean separation.
Your team controls campaigns, copy, targeting, and timing. You get metrics on open rates, reply rates, and response quality. The infrastructure layer handles the technical credibility problem underneath, so your failures are about messaging, not delivery.
When bounce rates change, it’s not your problem to solve. It’s ours. We’re investigating it, adjusting it, replacing infrastructure if needed – while your sends continue uninterrupted.
This separation is also about security and operational clarity.
You’re not managing domains and IPs yourself, which means fewer moving parts to manage, fewer attack surfaces to secure, and a clearer chain of responsibility if something goes wrong.
Everything is documented, monitored, and backed by a service agreement that defines what happens when something breaks.
The Scaling Angle
Most email services compete on what they send. We compete on where your emails land – and more importantly, they stay sent from infrastructure that holds up under scrutiny from Fortune 500 IT teams.
As you scale from hundreds to thousands to tens of thousands of emails per day, infrastructure becomes your constraint, not your tool choice. That’s what managed infrastructure solves.
It lets you scale campaigns without scaling your operational burden around sender reputation.
Here’s a concrete example:
A B2B SaaS company starts sending hundreds of emails per day from a single domain. It works fine. But when they try to scale significantly, their new domain gets throttled by Gmail, their bounce rate jumps, and ISPs start applying stricter filtering.
They hire someone to manage DNS, monitor reputation, respond to blacklist incidents, and audit sending patterns. That person becomes a significant part of their ops burden.
With managed infrastructure, that person spends their time optimizing campaigns instead of managing IPs.
This is why teams in high-scrutiny industries – healthcare, finance, insurance, legal, publicly traded companies – rely on it.
They can’t afford to be learning IP reputation management while running their outreach program. They need infrastructure that works, period. Their security teams won’t accept the risk.
So they outsource it to specialists who do this every day.
Our Revenue Director, Chrisley Ceme, is leading the Triggered Outbound program.Chrisley’s gone deep on this strategy and can walk you through:
- How Triggered Outbound fits with your outbound goals
- What triggers are available (and what’s possible within our platform)
- Pricing, onboarding, and getting started
