Email authentication guides
Learn SPF, DMARC, and domain spoofing prevention
Practical guides for understanding the DNS records, reports, and monitoring habits that keep business email trusted.
5 min readWhat is SPF?Learn how Sender Policy Framework records tell mailbox providers which servers are allowed to send email for your domain.Read guide6 min readWhat is DMARC?DMARC explains what receivers should do when email fails authentication and gives domain owners reports about who is sending mail.Read guide7 min readHow to set up DMARCA practical rollout path for publishing DMARC safely, collecting reports, and moving toward quarantine or reject.Read guide6 min readHow to prevent email spoofingUse SPF, DKIM, DMARC, and ongoing monitoring to stop attackers from impersonating your domain.Read guide6 min readUnderstanding DMARC reportsDMARC aggregate reports reveal which sources send mail for your domain and whether they pass SPF, DKIM, and alignment.Read guide