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Understanding How Email Warm-Up Works

Learn how the email warm-up process protects your sender reputation and helps your campaigns reach inboxes safely.

💡 What It Is

When you start sending campaigns, your emails go through a warm-up period. This gradual process increases your sending volume over time, helping your messages stay out of spam and keeping your domains safe.

🎯 Why It Matters

Jumping straight to high-volume sending can get your accounts flagged or even shut down. The warm-up period protects your sender reputation by slowly building trust with email providers.

Benefits:

  • Prevents bounces and spam flags
  • Keeps your accounts safe
  • Ensures you can scale to full volume smoothly

⚙️ How It Works

Example Setup:
  • You have 10 email addresses connected to your campaign.
  • Each email has a sending limit of 34 per day.
  • That’s a total capacity of up to 340 emails per day once you’re fully warmed up.
During the Slow-Ramp Period (~15 days):
  • We gradually increases your daily send count.
  • You’ll see fewer emails go out than you’ve added to the system.
  • After Warm-Up is Complete:
  • Your campaigns will consistently send at full capacity (340 per day).

🙋 FAQs

Question Answer
Why are fewer emails going out than I scheduled? You’re in the slow-ramp warm-up phase. This is expected and prevents deliverability issues. After about 15 days, you’ll reach full volume.
What happens after the warm-up period? Your account will send at its full capacity (up to 340 per day for an account that purchased 10,000 emails/month) on a consistent daily basis.
Can I change the warm-up speed? No. The ramp-up is automatically managed for your safety and can’t be skipped or sped up.
Do I need to do anything during warm-up? No — just keep building your campaign. We handle the warm-up in the background.

🧩 Pro Tip

Use the warm-up period to test your messaging and fine-tune your templates. By the time you reach full sending volume, your campaigns will already be optimized for performance.