Email Marketing Strategist and Executor

This is a long-term engagement for someone who has personally scaled cold and newsletter programs into the hundreds of thousands of sends per week without torching domain reputation. We currently juggle multiple sending tools, a large multi-domain footprint, and a very large subscriber base. It's working, but not cleanly — we have deliverability problems, tooling sprawl, and reputation risk we need someone to take control of. You'll diagnose what we have, fix what's broken, and design a durable architecture we can run on for the long haul. The Problems You'll Solve 1. Deliverability & a reliable sending stack. Our current tools each have limitations — one has authentication issues and blocking risk, another lands in spam, and our warm-up tooling is hitting its limits. We need you to establish a reliable, properly authenticated (SPF/DKIM/DMARC) sending setup and a clear point of view on which tools to keep, replace, or consolidate. 2. Protecting our primary domain. Our newsletter list is very large, and sending it is increasingly putting our main domain's reputation at risk. We need a strategy to send at volume — including whether subdomains, dedicated sending domains, or a separate infrastructure are the right call — so the core brand domain stays clean. 3. Sending at scale with strong engagement. We need to reliably email a subscriber base in the six-figure range and hold an open rate around 40%. You'll own list hygiene, segmentation, warm-up, and the deliverability practices that make that number achievable and sustainable. 4. Managing a large multi-inbox, multi-domain footprint. We operate hundreds of email addresses across dozens of domains and subdomains. We need someone who can bring order to this — provisioning, authentication, rotation, monitoring, and reputation management across the whole fleet. 5. High-volume cold campaigns. We're scaling cold outreach to roughly six figures of sends per week starting soon. You'll build the infrastructure and sending practices to run cold at that volume while staying compliant and out of spam folders. 6. Isolating audiences from the main domain. We need to manage tens of thousands of subscribers in a way that never pollutes our primary domain's reputation. You'll design the segmentation and infrastructure separation to keep audiences and risk properly isolated. 7. Unifying tool strategy. We've accumulated several tools that overlap and aren't well aligned. We want a clear, consolidated tooling strategy — what each tool is for, what to cut, and how they fit together into one coherent system. What Success Looks Like A reliable, fully authenticated sending stack with deliverability problems resolved Primary domain reputation protected and de-risked A scalable architecture (subdomains / dedicated domains / separate infra) for high-volume newsletter and cold sending Consistent inbox placement, target open rates, click rates and low spam rate at scale A clean, well-documented tooling strategy the team can operate confidently What We're Looking For Proven, hands-on experience scaling email programs to 100K+ sends per week Deep expertise in email deliverability: SPF, DKIM, DMARC, BIMI, domain/IP warm-up, blacklist and reputation monitoring Experience managing large multi-domain / multi-inbox sending infrastructure (including subdomains and dedicated sending domains) Strong command of both cold outreach and newsletter/marketing deliverability, and how they differ Familiarity with a range of ESPs, cold-sending platforms, warm-up tools, and CRM-based sending — and clear opinions on when to use each Track record of protecting a primary domain's reputation while sending at volume Clear communicator who can explain trade-offs and hand over documentation Most important experience in B2B SaaS, and with large (100K+) subscriber databases and 250K+ cold database