KeePass - KeePass is an open source password manager. Passwords can be stored in highly-encrypted databases, which can be unlocked with one master password or key file.
Microsoft Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
bitwarden - Bitwarden is a free and open source password management solution for individuals, teams, and business organizations.
Thunderbird - Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!
KeePassXC - KeePass Cross-Platform Community Edition - A community maintained fork of the popular KeePassX...
eM Client - eM Client is a fully-featured email client for Windows and macOS with a clean and easy-to-use interface. eM Client also offers features for calendars, tasks, contacts, notes, and chat.