What is the duration for which the TXT token needs to remain in the domain's DNS entry?

The duration for which the TXT token needs to remain in the domain's DNS entry is effectively dependent on the desire to maintain ownership or control over the domain for verification purposes. Keeping the TXT token in place allows for continued verification of the domain and ensures that the owner retains the right to that domain as it relates to services that require such verification, like DocuSign.

In this context, as long as you want to reserve the domain implies that the domain owner can decide when they no longer need the TXT record and can remove it when they feel that the verification is no longer necessary or when they cease to use the services associated with that domain. This flexibility is crucial for managing domain ownership over time according to business needs and service usage.

The other options suggest fixed durations that don't align with the need for ongoing verification, which can change as business circumstances evolve. For example, indicating that the record needs to be kept only for 30 days or until a user account is activated limits the organization’s ability to use the domain as needed in the future. Additionally, stating the duration should be as long as the domain is active could imply other conditions or requirements that may not directly pertain to the TXT token’s necessity. Thus, the preference for the duration remains consistent