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Dev.to
Dev.to
6/22/2026
Land your AI agent's email in the inbox, not spam

Land your AI agent's email in the inbox, not spam

Short summary

Setting up reliable email delivery for AI agents requires three authentication layers: DKIM cryptographic signatures, SPF authorization records, and DMARC policies that instruct providers how to handle failed authentication. Warm up new domains gradually over 4 weeks, starting with 5-15 daily emails to engaged recipients and ramping to 500+ daily. Monitor bounces and complaints through webhooks to maintain inbox placement and avoid spam filters.

  • Authenticate domains with DKIM, SPF, and DMARC before sending at volume
  • Warm up new domains over 4 weeks with gradual volume increases to engaged recipients
  • Monitor deliverability through webhooks and tighten DMARC policies as reports show clean authentication

Generated with AI, which can make mistakes.

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