v1.1.18

What's Changed

Rich-text out-of-office replies

• The Internal Reply and External Reply boxes are now full rich-text editors. You can set the font, size, and colour, apply bold / italic / underline, insert hyperlinks, and build bulleted or numbered lists.
• Formatting round-trips through Exchange: what you see in the app is what recipients get, and edits made in Outlook or OWA load back into the editor.
• Formatted replies also flow through templates, saved preferences, both Power Automate schedule packages, and the "Compare with cloud" check.
• Existing plain-text replies are upgraded automatically on load. Nothing to migrate.
• Reply markup is passed through a strict allowlist in both directions, and link addresses are restricted to http, https, and mailto.

Fixes

• Out-of-office settings could no longer be read or saved. Exchange Online recently started emitting calls to a type (ExoPowershellSnapin.JsonTypedConverter) that only ships in Exchange Online Management 3.10.x, so every read and write failed against the bundled 3.9.2 module with "Unable to find type". The bundled module is now 3.10.1, and the module-selection logic no longer sorts versions as plain strings (which ranked 3.9.2 above 3.10.1).
• The Exchange module cache under %LOCALAPPDATA%\OofManager\ExoModuleCache was never pruned for returning users and could grow to hundreds of stale folders. Cleanup now runs on both sign-in paths, in the background.

Other

• Bumped app and installer version to 1.1.18.