You can change your signature in Outlook to tailor it to different email recipients. Here's how to do it.

You can share your Outlook calendar with anyone who has an email address, even if they don't use Outlook.

To change the default browser in Outlook 365, go to File > Options > Advanced, then scroll to “Link Handling” and set “Open hyperlinks from Outlook in” to your preferred browser, like Chrome.

Change default iPhone and iPad apps under Settings > Apps > Default Apps. Options include browsers, messaging, contactless apps, and autofill setups for password managers. You can't pick a new default ...