In lieu of or in addition to publication of notice under ORS 255.085, if it is expedient to do so the elections officer may give notice by mail to each elector of the district. The notice shall have postage prepaid and shall be considered given when mailed. Mailed notice of a district election under ORS 255.085 shall be made not later than three days after receipt of the ballot title. Proof of mailing shall be by affidavit of the elections officer. The affidavit shall state the time and place the notice was mailed.
ORS 255.215