Warmup Sequences for New Domains

Warming up a new domain is the process of building a positive sending reputation with Email Service Providers (ESPs) like Google and Microsoft before you send a single cold email. Skipping this step is the fastest way to burn a new domain, ruin your deliverability, and ensure your campaigns go straight to spam from day one. This isn't a 'nice-to-have'; it's mandatory infrastructure for any serious outbound operation.

Without a systematic warmup process, teams sending at any meaningful volume run into predictable, expensive problems. It's not a matter of if, but when.

1. Immediate Spam Placement: You invest in new domains and configure DNS records correctly, only to find your first campaign has a 90% spam rate. The domain is now flagged by filters before it ever had a chance.
2. Manual, Inconsistent Execution: An ops person manually sends a few emails a day from a spreadsheet. They get busy, forget a few days, or an impatient SDR starts a campaign early. This inconsistent behavior is a negative signal to ESPs.
3. Total Uncertainty: Is the domain ready after two weeks? Four? At 20 emails per day or 50? Without data and placement testing, it's pure guesswork. Guessing wrong means burning the asset and starting over.

For a Deliverability Lead or RevOps leader, a mature warmup system isn't about sending emails—it's about creating predictable assets. The ideal state is automated and data-driven.

A centralized dashboard shows the health and warmup status of all 50+ domains in your portfolio. When a new domain is purchased, it's automatically enrolled in a 3-4 week warmup sequence with a predefined, safe ramp-up schedule.

Clear metrics from deliverability monitoring tools show exactly where warmup emails are landing. The system provides a clear 'production-ready' signal based on consistent primary inbox placement, removing all guesswork from the process. This turns domain management from a chaotic fire drill into a predictable assembly line.

Setting up a scalable warmup process involves a few key infrastructure steps. This isn't about 'hacks'; it's about building a repeatable system.

1. Procure and Configure Assets: Acquire new domains and set up 1-3 inboxes for each. Immediately configure SPF, DKIM, and DMARC records correctly. This technical foundation is non-negotiable.
2. Enroll in an Automated Warmup Network: Connect your new inboxes to a system that automates sending, receiving, and replying with a large pool of other real, seasoned inboxes. This simulates natural human conversation at scale.
3. Automate the Ramp-Up Schedule: Define a gradual sending increase. For example: start at 2-5 emails/day, and slowly increase the volume by 1-2 emails every day over 3-4 weeks, capping at around 40-50 emails/day per inbox.
4. Monitor Inbox Placement: The entire point of warmup is to see where you land. Use an integrated deliverability tool to test placement across Google Workspace and Microsoft 365. If you're not hitting the primary inbox, the domain isn't ready.
5. Transition to Production Safely: Once an inbox consistently hits the primary inbox for 7-10 consecutive days at its max warmup volume, it can be moved into a production sending pool. Start with very low volumes (10-20 cold emails/day) and monitor results closely.

Managing this process for more than a handful of domains is impossible with spreadsheets and manual effort. The operational drag and risk of error are too high. This is where an infrastructure platform becomes critical.

1. Centralized Domain Management: A single dashboard to view all domains, their age, their current warmup status, and their deliverability health.
2. Automated Warmup Orchestration: Automatically enroll new inboxes into pre-built, safe ramping sequences without any manual intervention.
3. Integrated Deliverability Monitoring: Built-in placement testing that shows you precisely where your emails are landing, removing the need for separate, disconnected tools.
4. Safe Sending Guardrails: Enforce hard limits on daily sending volume per inbox, ensuring no one on the team can accidentally burn a freshly warmed domain.

SuperSend is designed as this execution and infrastructure layer for outbound teams sending at volume. It unifies domain management, automated warmup, multi-channel sequencing, and deliverability monitoring into a single system.

Before launching your first campaign, the next step is to understand the core infrastructure strategies for scaling safely. From there, you can explore specific sequence templates built for your warmed-up domains.