What is Warmup Sending Range?

Overview

Warmup Sending Range in Outboundry controls how many warmup emails are sent from your account each day during the email warmup process.

Instead of sending a fixed number of emails daily, Outboundry allows you to define a minimum and maximum range. The system then automatically varies your daily sending volume within this range to simulate natural email activity.

This helps build your sender reputation safely while avoiding patterns that may trigger spam filters.

What is Warmup Sending Range?

Warmup Sending Range defines the daily volume boundaries for your warmup emails.

For example:

• Minimum: 10 emails/day

• Maximum: 20 emails/day

Outboundry will automatically send a random number of emails between 10 and 20 each day, creating a natural and human-like sending pattern.

Why Warmup Sending Range Matters

1. Builds Sender Reputation Safely

Gradually increasing and varying your sending volume helps establish trust with email providers without raising red flags.

2. Prevents Spam Triggers

Sending the same number of emails every day or ramping up too quickly can look suspicious. A range ensures your activity appears organic.

3. Mimics Real Human Behavior

Real users don’t send the exact same number of emails daily. Randomized sending patterns improve authenticity and deliverability.

4. Balances Speed vs Safety

• Too many emails too soon → Risk of spam

• Too few emails → Slow warmup

A well-defined range helps you strike the right balance.

How Warmup Sending Range Works in Outboundry

Here’s how it works:

1. You set a minimum daily limit (e.g., 10 emails)

2. You set a maximum daily limit (e.g., 20 emails)

3. Each day, Outboundry automatically selects a number within this range

4. Warmup emails are sent accordingly with natural variation

This ensures your email activity remains consistent but not predictable.

Recommended Warmup Sending Range

For New Email Accounts

• Start with: 5–10 emails/day (min)

• Max: 15–20 emails/day

• Gradually increase over time

For Moderately Aged Accounts

• Start with a slightly higher range

• Increase cautiously based on performance

General Guidelines

• Avoid exceeding 25–30 emails/day early on

• Maintain the same range for at least 2–3 weeks

• Increase gradually only after stable inbox placement

Starting slow and scaling steadily is key to long-term deliverability success.

Best Practices

To get the most out of Warmup Sending Range:

• Keep your range stable during initial warmup

• Avoid sudden spikes in sending volume

• Monitor inbox placement and engagement metrics

• Lower your range if you notice deliverability issues

• Combine with:

  • Proper SPF, DKIM, and DMARC setup

  • Clean email lists

  • High-quality, personalized content

When Should You Adjust Your Sending Range?

Adjust your range based on your account’s performance:

• Increase range → When inbox placement is stable and engagement is strong

• Reduce range → If emails start landing in spam or bounce rates increase

Warmup is not static—it should adapt to your email health.

Why Use Warmup Sending Range in Outboundry?

Outboundry’s Warmup Sending Range helps you:

• Automate natural sending behavior

• Reduce risk of spam detection

• Build sender reputation faster and safer

• Customize warmup based on your strategy

It gives you controlled flexibility, which is essential for effective email warmup.

Summary

Warmup Sending Range defines how your daily warmup volume behaves.

By setting a minimum and maximum range, you allow Outboundry to:

• Simulate real email activity

• Avoid predictable patterns

• Build trust with email providers

A well-configured sending range is critical to ensuring your emails consistently land in the inbox.