Microsoft Exchange - No brainer for 100% uptime.
Use Cases and Deployment Scope
Pros
- Ease of implementation
- Ease of use
- Intuitive portal
- Always up to date
Cons
- Support
- Licensing

Ease of Access: Users have appreciated the easy access to Outlook administration tools within Microsoft Exchange, finding it convenient for managing their email and calendar efficiently. This quick accessibility has allowed users to streamline their tasks and stay organized with ease.
Collaboration Features: Many users value the shared contacts and calendars feature in Microsoft Exchange, as it promotes collaboration and coordination among team members within organizations. This collaborative aspect has improved communication channels and enhanced teamwork efficiency.
Reliable Uptime: The robust uptime of Microsoft Exchange products, including Outlook and OneDrive, is praised by users for being reliable and beneficial to their workflow. This consistent performance ensures that users can rely on these tools without disruptions, resulting in increased productivity levels.
In my current position, I am responsible for migrating our United States origination from Lotus Notes to Microsoft Exchange 2016. This includes the Exchange architecture, setup, migration and management.
Exchange 2016 is now our primary (and only) email solution for our entire origination across multiple continents.
The reason we switched to Exchange from Notes, is because Exchange provides up-to-date email technology, redundancy/failover, low cost of ownership, scalability and excellent performance.