How do email providers compare on deliverability? We aggregated scan data across hundreds of domains to rank providers by average email authentication grade.
We detect each domain's email provider from its MX records, then aggregate SPF, DKIM, and DMARC scores across all domains using that provider. The result is an average deliverability grade per provider.
Your email provider's default configuration significantly impacts your deliverability. Some providers auto-configure SPF and DKIM. Others leave it to you. This leaderboard shows which providers set their customers up for success — and which leave gaps.
Scan your domain to see how your provider stacks up.