Why email infrastructure control matters

As the CEO of a multi-tenant SaaS, you live with a hidden risk that most email service providers ignore: your success is also your biggest vulnerability. You’ve meticulously built a platform that empowers thousands of end-users. But what happens when one of those users decides to send a phishing campaign? With a generic email provider, the answer is often catastrophic. Their systems see all your traffic as a single stream. They can't distinguish between your thousands of good customers and the one bad actor. The result? Your entire account gets flagged and suspended. Suddenly, your legitimate customers—the ones who rely on you for critical notifications, password resets, and communications—are dead in the water. This isn't just a technical glitch; it's a full-blown business crisis. It forces your engineering teams to drop everything to fight fires, triggers a flood of support tickets, and damages the trust you've worked so hard to build. With the average cost of a phishing breach soaring to millions of dollars, the stakes have never been higher. The fundamental problem is an architectural mismatch. Generic email infrastructure was not designed for the multi-tenant reality. It treats platforms as a monolith, creating a single point of failure where the actions of the few can silence the many. Platforms need an email strategy that mirrors their own business model: one that is inherently multi-tenant. This means having the intelligence to track reputation and behavior at the individual end-user level. It means having the granularity to surgically rate-limit or block a single bad actor in real-time—within seconds—without disrupting service for everyone else. At MailChannels, we've spent nearly two decades focused exclusively on this problem, even though everyone said we were fools to try. We believe that platform providers should never be punished for the actions of their users. Your email infrastructure should be your first line of defense, not your weakest link. Leaders of multi-tenant platforms: Have you been forced to divert your valuable resources to deal with email deliverability issues caused by your own customers? It's a conversation our industry needs to have. #EmailAPI #SaaS #PaaS #EmailDeliverability #MultiTenant #CyberSecurity #PhishingPrevention

Why Most Outbound Teams Fail (and how to fix it for good) Most outbound teams don’t fail because their copy is bad. They fail because their infrastructure is broken. And the scary part? Most teams have no idea it’s happening. Here’s the truth: → You can personalize every email like a pro. → You can write the best copy anyone’s ever seen. → You can build the most beautiful sequences. But if your infrastructure is weak? Your emails will never even make it to the inbox. ❌ Domains will burn. ❌ SDRs will get frustrated. ❌ Budgets will get wasted. And you’ll end up blaming the wrong thing: The script. The targeting. The offer. When the real problem is deeper — It’s the foundation everything is built on. – WHAT “INFRASTRUCTURE” ACTUALLY MEANS – When I say “infrastructure,” I mean: → Setting up multiple domains with built-in redundancy → Using a mix of ESPs (Google, Microsoft, SMTP) — not relying on one → Warming up mailboxes properly — not just pressing “start” in random tools → Controlling volumes and mimicking real human sending patterns → Rotating domains before they burn out → Proactively monitoring your domain reputation → Always having fallback domains ready to go Most teams either skip these steps… Or scramble to fix them once everything starts falling apart. It’s like building a skyscraper without testing if the ground is stable. It might look fine for a while. But sooner or later? It crashes. – THE REAL COST OF BAD INFRASTRUCTURE – Bad infrastructure doesn’t just hurt deliverability. It causes: → Domains getting blacklisted and banned → Spam flags before your first campaign even launches → Reporting that you can’t trust (because half your emails aren’t even delivered) → SDRs thinking they are the problem → Thousands wasted on software, lists, and licenses But the worst part? It crushes team morale. And when a team loses confidence? Good luck getting it back. – WHAT THE BEST OUTBOUND TEAMS DO DIFFERENTLY – The best teams don’t leave infrastructure to chance. → They invest in it before sending a single email. → They treat it like a real business asset — not an afterthought. → They check domain health every week — not just when things break. → They build systems for warming, rotation, fallback, and resilience — from day one. Outbound in 2025 isn’t about “writing better emails.” It’s about outsmarting the platforms. It’s about building systems that can take a punch — and keep moving. That’s how you win. – HOW WE HELP – We help B2B companies build Anti-Fragile Cold Email Infrastructure that just works. → Multi-domain setups built for resilience → Smart SMTP and API-based sending strategies → Domain rotation systems ready for scale → Active deliverability monitoring and reputation management → Playbooks your team can actually follow We act as your Fractional Head of Cold Email Infrastructure ✅ If you’re tired of: → Burning domains… → Watching reply rates crash without any clear reason… Connect with me.

We all know email’s not “set and forget”, but how many of us are really keeping up with the maintenance? I've seen so many email programs suffer because critical infrastructure updates get pushed to the back burner. "If it ain't broke, don't fix it," they say. And then... well, things break. 😬 My colleague, Brian Godiksen, just wrote a blog post that digs into this exact issue — including a very recent, real-life example of what happens when a mailbox provider has an outage, but critical infrastructure upgrades have been delayed by two out of three ESPs. “It’s one small change. How big of a deal can it make, really?” You tell me. Here are the Delivered Rates across 3 ESPs during a recent outage at a mailbox provider: SocketLabs: 99.25% Competitor 1: 80.06% Competitor 2: 55.49% These numbers aren't just anomalies. Brian's blog digs into the nitty-gritty of it all — including what happened, why, and what it actually takes to fix it. More specifically (for you technical nerds), he covers: 🔎 The impact of neglecting infrastructure configuration. MTA misconfigurations can lead to significant delays and unnecessary bounces, which have an impact on your sender reputation and the overall email performance for your senders. 🔎 The importance of proper bounce handling to keep up with mailbox provider updates. Brian makes it clear why these "minor" changes can have major consequences if you're not regularly checking for errors and taking action on performance issues. 🔎 The risks of outdated TLS protocols. You might be surprised at the deliverability hits you're taking if you still rely on older versions. Ultimately, sending email is easy. But reaching the inbox hard — if your email provider isn’t keeping pace with what’s happening in the industry (such as when a mailbox provider has an outage). If you’re responsible for making sure emails actually reach the inbox, this one’s a must-read. 💌 Check it out here: https://lnkd.in/g88DJNXZ PS - 🍀🍀 Here's a dash of green because, well, who couldn't use some good luck in 2025? Go n-éirí an bóthar leat.🍀🍀🍀 💌 🌈💰🍀

Great insights on this breach - email systems continue to be the soft underbelly of enterprise security. What strikes me most is how attackers are specifically targeting regulated financial communications, showing they understand the value of compliance-sensitive data. The real lesson here isn't just about email security, but about treating email infrastructure as critical business infrastructure. Too many organizations still view email as "just communication" rather than a treasure trove of sensitive data that needs the same protection as databases and financial systems. Key takeaways for security teams: → Implement zero-trust email access controls → Monitor for unusual email patterns and access behaviors → Have incident response plans specifically for email compromises → Regular security assessments of email infrastructure This breach should be a wake-up call for every CISO - if you're not treating your email environment as mission-critical infrastructure, you're already behind. #EmailSecurity #CyberSecurity #DataBreach #RiskManagement #Compliance #FinancialServices #ZeroTrust #IncidentResponse #CISO #CyberResilience #SecurityAwareness #OCC Ben Rothke Keith Franco, CISM, CASP, A/AISF Michael Petrov Mike Wilkes Steven R. O'Shea