The technical preview of Vivaldi's built in mail client has been released as an experiment in the Snapshot version of the browser. To start using the mail client:
- Make sure you have the latest Snapshot version of the browser. Consider installing it as a Standalone, if so far you've only used the Stable version of Vivaldi.
- Go to
vivaldi://experimentsand enable Calendar, Mail & Feeds.
- Restart the browser.
A few tips before posting: