Email Deliverability

Email Going to Spam

Emails landing in spam can result from missing email authentication (SPF, DKIM, DMARC), poor sender reputation, IP or domain blacklisting, or content triggers. A systematic approach checks authentication records, reputation databases, and sending infrastructure.

Symptoms

  • Recipients report not receiving your emails
  • Emails found in spam/junk folder
  • Low email open rates
  • Bounce messages mentioning spam policies

Common Causes

  • Missing or failing SPF, DKIM, or DMARC authentication
  • Sending IP or domain listed on blacklists
  • Poor sending reputation from past spam complaints
  • Email content triggering spam filters
  • Sending from shared IP with bad reputation

Step-by-Step Troubleshooting

  1. 1

    Check SPF record

    Verify your SPF record is valid and includes all sending services.

    Use SPF Checker →
  2. 2

    Check DKIM

    Verify DKIM is properly configured and signatures validate.

    Use DKIM Validator →
  3. 3

    Check DMARC

    Ensure DMARC policy is set and alignment is correct.

    Use DMARC Check →
  4. 4

    Check blacklist status

    Verify your sending IP and domain are not on any blacklists.

    Use Domain Blacklist Check →
  5. 5

    Check IP reputation

    Analyze the sending IP for reputation issues.

    Use IP Blacklist Check →

Recommended Diagnostic Tools

SPF CheckerDKIM ValidatorDMARC CheckDomain Blacklist CheckIP Blacklist Check

Monitor Email Reputation

Track blacklist status and email authentication continuously.

Related Problems

Frequently Asked Questions