Email Delivery Issues

3 min readUpdated 2026-04-12

Key Takeaway

High bounce rates trigger auto-pause at 2%; spam complaint rates trigger auto-pause at 0.1% — both thresholds exist to protect your sender reputation, and campaigns can be resumed after cleaning the lead list or adjusting targeting.

High Bounce Rate

If your campaign shows a bounce rate above 2%:

Why It Happens

  • Lead email addresses changed after verification
  • Company mail servers are temporarily down
  • Email addresses were valid but the mailbox is full

What to Do

  1. Your campaign will auto-pause at 2% bounce rate
  2. Review bounced leads in the Leads page
  3. Remove or update invalid addresses
  4. Resume the campaign once you've cleaned the list

Emails Going to Spam

If recipients report your emails as spam:

Prevention

  • LeadClaw already enforces SPF, DKIM, and DMARC authentication
  • Every email includes a one-click unsubscribe link
  • Physical address is included in every footer
  • Email content is checked for spam trigger words

If It Happens

  • Your campaign auto-pauses at 0.1% complaint rate
  • Review your email content for aggressive language
  • Ensure your value proposition is relevant to the audience
  • Consider narrowing your target audience

Email Configuration

If your agent can't send emails:

  1. Go to Settings > Email
  2. Verify your @leadclaw.io address is configured correctly
  3. If you recently changed your email prefix, wait a few minutes for propagation
  4. If issues persist, submit a help ticket

Slow Email Delivery

Your agent sends up to your plan's daily limit (Free: 5, Pro: 50, Ultra: 150) each day. If email volume appears lower than expected, it may be because fewer verified leads are available in your target audience that day. Ensure your campaign's target audience is broad enough to find new leads consistently.

Still Having Issues?

If you've tried the steps above and emails still aren't delivering, submit a help ticket with:

  • Your campaign name and current bounce/complaint rate
  • Your @leadclaw.io email address
  • Any error messages from the Activity Feed

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