The director of revenue shall notify depositors whose accounts are to be escheated as follows:

(1) A letter advising that a postal savings system account in the name of the addressee is about to be escheated and setting forth the procedure by which a deposit may be claimed shall be mailed by first-class mail to the named depositor at the last address shown on the account records for each account to be escheated having an unpaid principal balance of more than twenty-five dollars.

(2) A general notice of intention to escheat postal savings system accounts shall be published once in each of three successive weeks in one or more newspapers which combine to provide general circulation throughout this state.

(3) A special notice of intention to escheat the unclaimed postal savings system accounts originally deposited in each post office must be published once in each of three successive weeks in a newspaper published in the county in which the post office is located or, if there is none, in a newspaper having general circulation in the county. This notice must list the names of the owners of each unclaimed account to be escheated having a principal balance of three dollars or more.