While CPLR 308 (4) permits the use of "nail and mail" substituted service when a party is unable to effect personal service under CPLR 308 (1) or (2), a "due diligence" attempt at personal service is first required. Plaintiffs' process server attempted service on two consecutive days — a Wednesday at 5:10 P.M. and a Thursday at 8:55 A.M. — at defendant's residence. These attempts did not constitute due diligence, made as they were within minutes of normal business hours at times when it was likely defendant was in transit to or from work (Magalios v. Benjamin, 160 A.D.2d 773), and also because no attempt to serve defendant by personal delivery was made at his known place of business (Pizzolo v. Monaco, 186 A.D.2d 727).
Concur — Rosenberger, J.P., Ellerin, Ross and Asch, JJ.