Service of process, under the provisions of this subarticle, shall be made by leaving a copy of the process with the surrogate or clerk, or with a deputy or a clerk employed in his office, together with a fee of $2.00 to be taxed in the costs.
The surrogate, deputy or clerk shall forthwith notify the fiduciary of the service by mailing a letter, with a copy of the process served inclosed, with full postage prepaid, directed to the fiduciary at the post office address given in the power of attorney.