Zoho Mail DNS Setup
@redbridge-consulting.com.au · MX · SPF · DKIM · DMARC
Configured professional email for @redbridge-consulting.com.au through Zoho Mail by adding the full set of DNS records required for delivery, authentication, and anti-spoofing — enabling the company to send and receive email on its own domain rather than a generic address.
Added Zoho's MX records (mx.zoho.com.au, mx2.zoho.com.au, mx3.zoho.com.au at priorities 10, 20, 50) to the domain's DNS zone so inbound mail routes to Zoho's servers.
Added the Zoho ownership verification TXT record to prove control of the domain before Zoho would activate the account.
Added a TXT record publishing the SPF policy (include:zoho.com.au ~all) so receiving mail servers can verify that Zoho is an authorised sender for the domain.
Generated the DKIM key pair in Zoho Mail Admin, then added the public key as a TXT record at the selector subdomain (zmail._domainkey). This cryptographically signs outgoing messages so recipients can verify they haven't been tampered with in transit.
Added a DMARC TXT record at _dmarc with a quarantine policy, instructing receiving servers to treat mail that fails both SPF and DKIM alignment as suspicious — reducing the risk of the domain being used for phishing.
Confirmed all records propagated correctly using Zoho's built-in DNS checker and sent test messages to verify delivery, signatures, and header authentication results (DKIM=pass, SPF=pass, DMARC=pass).
All @redbridge-consulting.com.au email addresses functional via Zoho Mail. Outgoing mail passes DKIM, SPF, and DMARC checks — improving deliverability and protecting the domain from spoofing.