How email infrastructure affects company communication

First it was Microsoft Outlook. Now it is Gmail. For lawyers and business leaders, this is not just another productivity update. It is a structural change in how information is processed before decisions are made. If you are on Outlook, this shift likely began with Microsoft 365 Copilot. Email threads summarised for you. Draft responses suggested. Action items surfaced automatically. In most organisations, this is rolled out centrally, governed by IT policies, and framed as an efficiency gain. Now Google is embedding Gemini into Gmail. Thread summaries, smarter suggested replies, enhanced proofreading, and an AI-driven inbox experience. Some features are switched on by default, with users needing to opt out. Functionally, the two are converging. Whether you use Outlook or Gmail, you are being given an AI inbox that reads, prioritises, and drafts before you do. You cannot merge the systems. Copilot lives in Microsoft’s ecosystem. Gemini lives in Google’s. But the experience they are normalising is the same. This is where lawyers and senior leaders should pause. Email is not casual communication. It carries legal advice, commercial positions, employment issues, regulatory discussions, and strategic decisions. When AI summarises a thread or drafts a response, it is not neutral. It frames what matters, what is omitted, and how tone is set. The governance models also differ in ways that matter. Outlook’s AI is typically enterprise-controlled. Gmail’s AI is more individual-facing and, in some cases, default-on. That has implications for consent, oversight, and risk allocation. The real issue is not which platform is “better”. It is that AI is becoming the default cognitive layer inside the tools leaders rely on most. Reading, writing, and prioritisation are being mediated before judgment is applied. For lawyers, that raises questions of accuracy, privilege, and professional responsibility. For business leaders, it affects how risk, urgency, and strategy are perceived. AI in email is no longer optional or experimental. It is becoming infrastructure. And infrastructure deserves sharper questions than feature lists.

Is your email strategy a chaotic mess? ���� I've seen it too many times, companies sending emails from multiple systems or sources with zero coordination. Marketing emails from one platform. Transactional emails from another. Product notifications from somewhere else entirely. And nobody has a complete picture of what's happening. The result? Customers getting bombarded with mixed messages. Deliverability issues that nobody can solve. And zero visibility into what's actually working. But here's the thing: Your email ecosystem is probably your most valuable customer touchpoint. Yet it's often the most neglected part of your tech stack. The real problem? Most companies have never mapped their entire email architecture. They're flying blind and it's costing them millions in lost revenue and damaged customer relationships. So what's the fix? It starts with a comprehensive 4-layer mapping approach: ✅ Layer 1: Foundation Mapping Identify EVERY system sending emails (marketing, product, support, outreach, etc.) Document ownership, purpose, and infrastructure ✅ Layer 2: Customer Journey Mapping Visualize touchpoints across the entire lifecycle + map triggers, logic, copy, and metrics for each email ✅ Layer 3: Performance Audit Benchmark deliverability health across all providers Measure engagement and attribution metrics ✅ Layer 4: Strategic Architecture Consolidate platforms and simplify infrastructure Introduce AI workflows and fix compliance gaps I've seen companies double their email ROI just by getting visibility into their email ecosystem. And guess what? The companies that master this don't just improve performance - they transform email from a tactical channel into a strategic asset. Your email architecture isn't just a technical concern. It's a business imperative. Map it. Optimize it. And watch your customer experience and engagement soar. What's the most chaotic part of your company's email ecosystem? I'd love to hear in the comments 👇

Don't use a single company domain, instead use a multi-domain strategy. If you're only using one domain for all your B2B email communication, you'll inevitably get in trouble. Here's why: •Single point of failure: Your entire communication stack (invoices, investor updates, customer support) depends on one domain's reputation. •Lengthy recovery: If your domain gets flagged, you could face weeks or months of reduced deliverability while rebuilding your sender reputation. •Missed opportunities: During downtime, critical emails might land in spam folders, potentially costing you deals or important relationships. A more robust approach: -Domain diversification: Set up 2-3 email accounts per domain for different communication purposes (e.g., yourbrand.ai, your-brand.co).  -Admin panels: Set up multiple admin accounts per domain, don't put all your eggs in one basket here. -Warm-up protocol: Implement a 4-6 week warm-up for each new domain, gradually increasing send volume and monitoring key metrics like open rates and spam complaints. -Continuous monitoring: Set up alerts for sudden drops in open rates or increases in bounce rates. Tools like MxToolbox can help automate this process. Track this daily or weekly and watch it closely. -Fallback strategy: Always have at least one "fresh" email in reserve, warmed up and ready to deploy if issues arise with your primary domains. In B2B SaaS, your outbound email infrastructure (ie distribution channel) is as critical as your product. Treat it with the same level of strategic planning and redundancy.

Landing in the inbox is as hard as explaining to your parents what you actually do for work. After looking at over 1,000,000 sent emails, we figured out what's working (as of today). 1. Infrastructure → The Foundation No shortcuts here. You need: → Proper authentication (MFA, oAuth) → Clean IP reputation (dedicated IPs, no shared pools) → Multiple domains for scale → Domain silos (separate workspaces) → Automated alerts for issues 2. Content Strategy → The Execution This is where most mess up: → Human-written copy (AI assists, never leads) → Consistent sending patterns → Lightning-fast reply times → Precise targeting (right person, right message) → Testing 3-5 verticals simultaneously 3. Monitoring → The Protection Your early warning system: → Daily deliverability checks → Spam trap monitoring → Engagement tracking → Domain health scoring → Performance alerts The truth about deliverability in 2025? It's not only about avoiding spam filters. It's about building infrastructure that lasts. Tech changes. Algorithms update. But solid infrastructure always wins. The companies hitting 95% inbox rates? They're not smarter. They're just more systematic.

We spend thousands of $$$$ on something most email sending infrastructures don’t even bother about. It's a cost center. But it’s also the reason we’re able to ensure that the ESPs who use SendPost can confidently land their emails in the inbox. ✨It’s our deliverability team. Early on, we noticed the “standard” advice didn’t cut it.  Telling customers to just warm up their domains or check their SPF records wasn’t solving their problems. Agencies with deadlines needed to hit volumes immediately. E-commerce brands needed to recover abandoned carts without hitting spam filters. High-volume senders needed stability across millions of messages. So, we built a dedicated team to help customers land in the inbox and avoid the spam folder. We could have bundled that into support or engineering, but that wasn't best for the customers. ❌ Support can answer tickets, but they can’t always understand sending patterns, domain age, or provider rules. ❌ If you stick deliverability inside the engineering team, it gets treated like bug-fixing. But it’s really about long-term customer success. ✨ We built a cross-functional deliverability team that worked across sales, support, and engineering. Because deliverability isn’t just about writing better subject lines or tweaking copy. At scale, it’s about how your sending infrastructure communicates with mailbox providers. Without a team dedicated to watching those signals, even the best emails can go to spam. So if you run an ESP or send at scale, here’s what you can ask your email infrastructure provider: 👉 Who actually owns deliverability at your provider? Is it buried in support, or treated as its own discipline? 👉 How quickly do they spot inboxing issues across accounts—and what actions do they take? 👉 Do insights from one customer’s problem ever make their way into the product for everyone else? 👉 How does their MTA adapt when Gmail, Outlook, or Yahoo tighten the rules? 👉 What’s the plan when your emails suddenly stop landing? At the end of the day, flashy features don’t move the needle if your emails don’t reach the inbox. Inbox placement is the real feature.