Why Your Cold Emails Land in Spam (And How to Fix It)

You've written the perfect cold email, built a targeted list, and hit send. But your open rates are abysmal. The culprit? Your emails are going straight to spam. Here's why and what to do about it.

1. Missing or Broken DNS Records

This is the most common issue. If your SPF, DKIM, or DMARC records are missing, misconfigured, or conflicting, email providers will treat your messages with suspicion. Use our free DNS checker tools to verify your setup.

2. Sending Volume Too High Too Fast

New domains and mailboxes need time to build reputation. If you jump from 0 to 50 emails per day without a warmup period, you're practically guaranteed to hit spam filters.

3. Poor Email Content

Spam triggers in your email content include:

• Too many links (keep it to 1-2 max)
• HTML-heavy formatting
• Spam trigger words ("free," "guaranteed," "act now")
• Large images or attachments
• No plain text version

4. Bad List Quality

High bounce rates signal to providers that you're sending to unverified lists. Always verify your email list before sending. Our email verifier tool can help with this.

5. No Warmup or Stopped Warmup

Warmup isn't optional for cold email. It's the foundation of your sender reputation. Keep warmup running alongside your campaigns.

6. Shared IP Reputation

With Google Workspace and Microsoft 365, you share IP pools with other senders. Using a mix of both providers gives you more resilience. If one IP pool has issues, the other can compensate.

Quick Fix Checklist

• Verify DNS records (SPF, DKIM, DMARC)
• Check your sending domain isn't blacklisted
• Reduce daily sending volume
• Simplify email content (plain text, fewer links)
• Verify your email list
• Enable or restart warmup