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Emails Going to Spam

Having your emails delivered to the Spam or Junk folder is typically caused by reputation factors, missing DNS records, or message content triggers.

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1. Verify Authentication (SPF, DKIM, DMARC)

Ensure your domain passes all three core authentication checks:
  • SPF: Confirms Mailofly’s IP addresses are authorized to send for your domain.
  • DKIM: Verifies cryptographic integrity of the message body and headers.
  • DMARC: Aligns the From domain with SPF and DKIM.
Run a check in Domains to ensure all records show a green Verified status.

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2. Check Spam Rate (< 0.3%)

Google and Yahoo enforce a strict 0.30% maximum spam complaint rate. If more than 3 out of every 1,000 recipients flag your emails as spam, inbox placement will drop immediately.
  • Use double opt-in where possible.
  • Include a prominent, one-click unsubscribe link.

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3. Sender Warmup

Brand-new domains or domains suddenly sending thousands of emails trigger anti-abuse heuristics. Gradually ramp up sending volume according to our Warm-up Guide.

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4. Content and Link Quality

  • Avoid URL Shorteners: Do not use bit.ly or generic redirectors; spam filters automatically flag them.
  • Text-to-Image Ratio: Do not send emails that consist entirely of a single image. Include well-structured HTML text.
  • Consistent From Address: Use a recognizable sender name and matching domain.