Aaron Norris · May 2026
Overview
DNS remediation is the first step in recovering a digital brand that has accumulated technical debt: stale records, unauthorized senders, broken email authentication, and orphaned subdomains. Every business eventually inherits a DNS configuration that no one fully documented. The remediation is straightforward but requires a careful inventory before any change is made.
The Inventory Phase
The first job is reading every record on the domain and identifying its purpose. A records, MX records, TXT records for SPF and DKIM, CNAMEs pointing to vendors, and the DMARC policy all get listed and traced to a current owner. Anything without an owner gets flagged. Anything pointing to a defunct service gets retired in stages.
Most domains carry years of forgotten configuration. The inventory is the part that prevents an outage during the cleanup.
The Remediation Sequence
Email authentication usually comes first because deliverability has the most immediate business impact. Then DNS hygiene: removing stale records, lowering TTLs before changes, and documenting the new state. Finally, monitoring is set so the configuration remains stable as new vendors come and go.
What to Do Next
If your DNS configuration has not been audited in the last two years, it almost certainly contains records that no one can explain. Fractional Technical Operations covers DNS remediation as a defined engagement. Schedule a consultation to begin.