Ordinarily, the affidavit establishes a prima facie case as to the method of service, and gives rise to a presumption of proper service. However, when the defendant submits a sworn denial of receipt of service containing specific facts to refute the statements in the process server's affidavit, the prima facie showing is rebutted. The plaintiff must establish personal jurisdiction by a preponderance of the evidence at a hearing.
Bank of N.Y.Mellon v. Ortiz, NY Slip Op 05378 (2d Dep't July 3, 2019)
Here is the decision.