No. Lookout is made by the developers of Parula at Beonex GmbH in Germany. It looks and works like Outlook, but it contains no code from Microsoft, and Microsoft doesn't endorse or support it.

Yes. Lookout connects to Exchange on your own servers through EWS, OWA or ActiveSync, and to Microsoft 365 through Microsoft Graph. You see your mail, calendars and contacts, and the shared calendars and folders of colleagues who gave you access. The Exchange connection is part of a paid plan of Parula.

Yes. Any provider with IMAP or JMAP works for mail, and CalDAV and CardDAV for calendars and contacts. You can have several accounts in the same window, for example your work account and your private mailbox.

Yes. You can send invitations to people on Outlook, Exchange, Microsoft 365, Google and Apple, and accept or decline theirs. When an invitation arrives, Lookout shows whether you are free at that time.

Yes. Lookout runs on Windows, macOS and Linux. On phones and tablets, Parula uses its own touch interface.

On each computer, and on your mail server. Parula connects directly to your servers and keeps mail, calendars and contacts in a local database on the computer. Nothing goes through the servers of Beonex or a cloud service in between.

Any server that speaks open standards: JMAP, IMAP and SMTP for mail, CalDAV and CardDAV for calendars and contacts, WebDAV for files. Parula works with Stalwart, Nextcloud and openDesk, among others.

They type their email address and password. Parula finds the server settings with Autoconfig, with the ISPDB for common providers, and with Exchange AutoDiscover. Manual settings are there for the rest. The developers of Parula created Autoconfig, which many mail apps use today.

Yes. S/MIME works with the certificates of your organization and is compatible with Outlook. Lookout shows your certificates as Digital IDs in the Trust Center, like Outlook. OpenPGP is supported too, including Autocrypt.

The protocols of Microsoft are proprietary, and building and maintaining a client for them is a lot of work. Organizations that use Exchange or Microsoft 365 pay for that work with a plan of Parula. The open-standards side of the app stays open source.

The EUPL was written by the European Commission. It is valid in all official languages of the EU and fits European law. Like the GPL, it keeps the code open: whoever distributes a changed version has to publish its source code.

An AI drafted the texts of these pages, from the source code of Parula and the notes of its developers. The developers read and checked them before they went online.

It is a play on the name of the app it resembles. And a lookout is the one who watches the horizon, which is what you do when you plan to leave.