Build / Project
Cold Email Infrastructure
Reply rate is the metric everyone watches. Inbox placement is the metric that decides it. If your mail is landing in spam, no amount of copy iteration will save the campaign, and most teams never find out because the sending tool still reports the send as delivered.
The problem
Sending from the primary company domain, no DMARC policy, mailboxes bought last week and put straight into a thousand-send day, no placement testing anywhere in the process. It works for a fortnight, then reply rates fall off a cliff and nobody can say when it started. Meanwhile the primary domain reputation, the one your invoices and contracts go out on, has taken the damage.
WHO THIS IS FOR
- Teams whose reply rates dropped without explanation and who suspect deliverability
- Anyone about to start outbound who wants the foundation laid before volume
- Companies that burned their primary domain and need a clean separation
- In-house SDR teams with good copy and bad placement
Scope
What is included
Domain and authentication
- Sending domain strategy: how many, which registrar, how they relate to the primary brand
- Domain purchase and DNS configuration, kept entirely separate from your primary domain
- SPF, DKIM and DMARC records configured and validated, with a policy that actually enforces
- Custom tracking domain so link tracking does not borrow a shared reputation
Mailboxes and warmup
- Mailbox provisioning across the sending domains at a sane per-mailbox volume
- A full warmup cycle run to completion before a single prospect is contacted
- Ramp schedule defining how volume increases week by week without tripping filters
- Rotation configuration so no single mailbox carries the whole send
Monitoring and testing
- Inbox placement testing across Google Workspace, Microsoft 365 and common providers
- Blocklist monitoring with alerting, so a listing is caught in hours rather than weeks
- Bounce, complaint and reputation dashboards you can read without a specialist
- Verification workflow so invalid addresses never enter a send in the first place
Operating rules
- A written playbook: daily caps, ramp rules, list hygiene standards, what to do when placement drops
- Escalation runbook for the three or four failure modes that actually occur
- Handover session with whoever will run sending day to day
How it runs
3 phases
Audit and design
Current sending reviewed: domains, records, volumes, bounce history and reputation. Then the target architecture is designed against your realistic monthly volume, because over-building costs money and under-building costs placement.
Build and warm
Domains registered, DNS set, mailboxes created, warmup started. This phase is mostly waiting, and the waiting is the product. Warmup runs to completion while the list and sequences are prepared alongside.
Validate and hand over
Placement tested across providers before real volume starts. Monitoring and alerting configured. The playbook is written, the runbook is handed over, and your team knows what to do when a number moves.
Outcomes
What it produces
What you own at the end
The domains are registered in your account, the mailboxes are in your workspace, and the playbook is a document you keep. This is deliberately not a service you have to keep buying from me.
Questions
About this engagement
Can you fix a domain that is already burned?
How many domains do we actually need?
Do you use automated warmup networks?
Is this included in the GTM System Build?
Proof
This work in practice
Often paired with
Related services
Lead Research and Enrichment
Account and contact lists built against real criteria, enriched with the signals that make a first line land, and validated before anything sends.
Full GTM System Build
ICP, lead sourcing, sending infrastructure, sequences, LinkedIn layer, CRM and reporting, assembled as one connected system rather than six disconnected tools.
Next step
Interested in the Email Infrastructure engagement?
Start with a 30-minute discovery call. No pitch, just a clear conversation about your pipeline problem and whether this system fits it.
Typically replies within one business day