Lotus Notes

Lotus Notes was a collaboration tool for e-mail and teamwork tools that used to be available for OS/2. Lotus Notes was referred first as the server and client components together, later it was split in "Lotus Notes" as the client and "Lotus Domino" as the server components.
 * The last available Lotus Domino Server for OS/2 was 5.0.x
 * The last available Lotus Notes Client for OS/2 was 4.x

Articles

 * Lotus Notes Release 4.0
 * Specifying a PC Server for Lotus Notes
 * New Administrative Features and Enhancements in Lotus Notes Release 4
 * Configuring Lotus Notes Mail on OS/2