Article

How to Master SPF, DKIM, and DMARC for Cold Email Deliverability

Instantly Free Intermediate

Instantly is built specifically for cold outreach, so this guide is framed around your exact problem rather than transactional email in general. It explains Gmail and Outlook's current bulk sender rules and gives specific record examples, which is useful once you already understand the basics and want the cold-email-specific version.

  • Gmail and Outlook now enforce SPF, DKIM, and DMARC for anyone sending meaningful volume
  • Keep your SPF record under 10 DNS lookups or it silently fails
  • Set DMARC reporting up first so you can see problems before you enforce a strict policy
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The question it answers

  1. My cold emails keep landing in spam. How do I fix deliverability?

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