The official, legal route to obtain legacy Lotus Notes installation media is through the HCL Software License and Delivery Portal.
These updates replace outdated Java Virtual Machine (JVM) components within the Notes client folder, preventing runtime application crashes. lotus notes client 8.5 3 64 bit download
Since Lotus Notes is now owned by HCL (formerly IBM), official downloads are restricted to customers with active maintenance contracts. The official, legal route to obtain legacy Lotus