Understanding Warm-up Strategies in TrulyInbox

Choosing the right warm-up strategy determines how your sending volume behaves over time. The goal is to match sending behavior with your account’s maturity and risk level.

TrulyInbox offers three warm-up strategies: Progressive, Randomize, and Flat. Each serves a different purpose depending on your account stage.

Understanding Warm-up Strategy

A warm-up strategy controls how many emails are sent per day and how that number changes over time. It directly impacts trust-building speed, deliverability stability, and risk exposure.

Selecting the wrong strategy can either slow growth unnecessarily or increase the risk of provider restrictions.

Progressive Strategy (Default and Recommended)

Best for:

• New email accounts
• New domains
• Inactive accounts
• Reputation recovery

How it works:

Sending starts at a controlled base volume and increases gradually each day.

You control:

• Starting volume
• Daily increase amount
• Maximum daily sending limit

Important behavior:

• The starting volume is locked once warm-up begins
• Future growth remains adjustable
• Volume increases steadily and predictably

Why it works:

Inbox providers trust gradual growth. Progressive sending builds credibility step by step and reduces the risk of sudden reputation spikes.

Randomize Strategy

Best for:

• Mid-maturity accounts
• Accounts already warmed
• Users who want more natural sending variation

How it works:

Instead of increasing daily, volume fluctuates within a defined range.

You define:

• Minimum emails per day
• Maximum emails per day

The system automatically varies sending volume within that range.

Why it works:

Consistent, predictable sending patterns can look automated. Controlled variation creates more natural activity signals.

Important limitation:

Randomize should not be used aggressively on new accounts. Large daily fluctuations early in warm-up can create inconsistent trust signals.

Flat Strategy

Best for:

• Fully warmed accounts
• Reputation maintenance
• Stable production environments

How it works:

The same number of emails is sent every day.

You define:

• A fixed daily sending value

Why it works:

Flat sending maintains stability once trust has already been established.

Important limitation:

Flat strategy is not suitable for new accounts. Starting at a fixed higher volume without gradual growth can trigger provider scrutiny.

How to Choose the Right Strategy

• Use Progressive if your account is new, inactive, or rebuilding trust.

• Use Randomize if your account already has sending history and you want more natural variation.

• Use Flat if your account is stable and you are maintaining reputation rather than building it.

Mistakes to Avoid

• Starting with Flat strategy on a new account
• Setting high maximum caps too early
• Frequently switching strategies
• Increasing volume aggressively without monitoring performance

Strategy changes should be based on account maturity, not impatience.

Final Note

Warm-up strategy is about controlled growth, not speed. Start conservatively, scale gradually, and stabilize once trust is built.