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How do I troubleshoot a mailing list?

Updated 2026-08-14

Quick answer

Check the bounce rates and unsubscribe rates in your mailing list software, and ensure your email content complies with anti-spam regulations.

Troubleshooting a mailing list involves checking delivery issues, analyzing engagement metrics, and ensuring compliance with email regulations.

Steps

  1. 1

    Review Bounce Reports

    Access your mailing list platform's analytics section to find bounce reports and identify problematic email addresses.

  2. 2

    Check Spam Complaints

    Look for spam complaint rates in your email campaign reports to see if recipients are marking your emails as spam.

  3. 3

    Update Email List

    Regularly clean your email list by removing inactive or invalid email addresses to improve deliverability.

  4. 4

    Test Email Content

    Send test emails to different email providers (Gmail, Yahoo, etc.) to see how your emails are rendered and if they land in the inbox or spam folder.

Check Delivery Issues

Start by reviewing your email delivery reports to identify any bounce rates or delivery failures. Most mailing list platforms provide insights into these metrics.

Analyze Engagement Metrics

Look at open rates, click-through rates, and unsubscribe rates to gauge how your audience is interacting with your emails.

Ensure Compliance with Regulations

Verify that your emails include necessary elements like unsubscribe links and comply with regulations such as CAN-SPAM or GDPR.

Watch out for

  • Email delivery issues can vary significantly between different email service providers.
  • Engagement metrics may be influenced by external factors such as seasonality or changes in audience preferences.

FAQ

What should I do if my emails keep going to spam?

Ensure your email content is relevant, avoid spammy words, and authenticate your domain with SPF and DKIM.

How often should I clean my mailing list?

It's recommended to clean your mailing list every 6-12 months, or more frequently if you notice high bounce rates.

What are the best practices for email subject lines?

Keep subject lines concise, avoid excessive punctuation, and personalize where possible to increase open rates.