Why Workspaces Should Require Both DNS Verification and Email Confirmation in 2026
Developers building workspace onboarding systems are advised to treat DNS domain verification and email confirmation as two distinct, complementary security checks rather than interchangeable ones. DNS TXT verification proves that an organisation controls a domain namespace, while email confirmation proves only that an individual can access a specific mailbox at a given moment. Neither check is permanent, so engineers are encouraged to log both as timestamped evidence events rather than storing a simple verified flag in a database. This approach becomes especially important in sectors like healthcare, where a clinic acquisition can leave former staff with lingering mailbox access even after ownership of the domain has changed hands. Combining both verification methods with auditable records narrows the identity claim and allows any future disputes or access anomalies to be traced back to a specific policy version and observed timestamp.
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