What Are The Best Practices For Making DMARC Work With Cloud Email Providers?
The best practices for making DMARC work with cloud email providers are to authenticate every sender with aligned DKIM, keep SPF lean via subdomain delegation and managed includes, roll out DMARC in phased enforcement (p=none → quarantine → reject) with continuous rua/ruf monitoring, and mitigate edge cases (forwarding, mailing lists) with ARC and custom return-paths—while…
