Warmup Sequence for New Domains

This sequence is for Deliverability Leads, RevOps, and agency owners responsible for outbound infrastructure. It's not a sales sequence; it's an infrastructure priming process.

Use this playbook when you've just provisioned new domains and inboxes and need to establish a positive sending history before they carry live, high-volume campaigns.

This is a foundational sequence focused on one thing: generating positive signals for Email Service Providers (ESPs) like Google and Microsoft. The content is intentionally simple to encourage replies.

1. Steps: 6
2. Total Duration: 14–21 days
3. Channels: Email only

This sequence should be sent to a network of known-good inboxes that you control or a dedicated warmup pool. The goal is to get opens and replies.

Step 1: Day 1 (Email)

1. Objective: Initial Send & Open
2. Subject: Quick question
3. Body: Hey, you around this week to connect?

Step 2: Day 4 (Email)

1. Objective: Simple Bump
2. Subject: Re: Quick question
3. Body: Just bumping this to the top of your inbox.

Step 3: Day 7 (Email)

1. Objective: Engagement Question
2. Subject: Thoughts?
3. Body: Saw you were connected to [Mutual Connection]. How do you know them?

Step 4: Day 11 (Email)

1. Objective: Soft Follow-up
2. Subject: Re: Thoughts?
3. Body: Any thoughts on the below?

Step 5: Day 15 (Email)

1. Objective: Value Touch (Simulated)
2. Subject: New resource
3. Body: Found this article, thought you might find it interesting: [Link to non-promotional, high-quality content]

Step 6: Day 19 (Email)

1. Objective: Final Engagement Attempt
2. Subject: One last thing
3. Body: Checking in one last time. Let me know if you have a second.

For a warmup sequence, "targeting" refers to the pool of inboxes you're sending to. This should be a controlled network of high-reputation inboxes (e.g., aged Gmail, Outlook) that will open and reply to your emails. The goal isn't to convert a prospect; it's to teach ESPs that your new domain sends emails that people engage with.

Personalization is minimal and often automated. The content of the emails is less important than the pattern of sending, opening, and replying. The focus is 100% on deliverability metrics, not copy effectiveness.

Running a warmup sequence is an infrastructure orchestration problem. Attempting this manually across 10, 50, or 100+ inboxes is a guaranteed failure.

Start with 5-10 sends per inbox per day, slowly ramping to a maximum of 30-50 over the 21-day period. This gradual increase is critical for building trust with ESPs.

This entire process must be run on dedicated, secondary domains. Using your primary corporate domain for any form of automated sending—even warmup—is an unacceptable risk. One mistake can get your primary domain blacklisted, crippling company-wide communication.

For RevOps and Deliverability teams, the core challenge is managing this process across a fleet of assets. A campaign sending 100k emails/month might require 100+ active inboxes. Each one needs to be warmed and maintained. This is where inbox rotation becomes critical. As some inboxes are warming, others are active in campaigns, and you rotate them to manage volume and preserve reputation.

Tools like SuperSend exist to handle this infra and orchestration. The platform automates the inbox warmup, domain rotation, and deliverability monitoring so teams can focus on campaign strategy, not duct-taping scripts together.