>Do you happen to know if there is a time-to-live associated with the cached >records
yes of course. see the RE address_verify_map = hash:/var/log/address_verify.map address_verify_positive_expire_time = 31d address_verify_positive_refresh_time = 7d address_verify_negative_cache = yes address_verify_negative_expire_time = 3d address_verify_negative_refresh_time = 12h see the file ADDRESS_VERIFICATION_README
