Internet Direct (Indy) Version 9.0.2 Beta
TSOARecord.MinimumTTL
Minimum Time-To-Live for Resource Records in this Zone.

property MinimumTTL: Cardinal;
Description
MinimumTTL is a read-only Cardinal property that represents the unsigned 32-bit minimum Time-To-Live field that should be exported with any Resource Record from this zone.

MinimumTTL is the value assigned by the DNS name server as the default value for TTL in all Resource Records for which it is an Authoritative name server. TTL may be given a higher value at some other time.