12 October 2026
Can someone send email pretending to be your business? SPF, DKIM and DMARC for Australian SMBs
Most Australian SMBs I talk to assume that if an email says it’s from their domain, it must have come from them. It doesn’t work that way. Email was built on trust, and anyone can type your domain into the From line of a message. Three DNS records, SPF, DKIM and DMARC, are how the receiving mail server tells your real mail from the fakes, and what it should do with the fakes.
Read →