What people ask

Labeling and exporting never delete, move or send messages: labels (Outlook categories) are added to existing ones, and export only reads your messages and saves them as .eml files. Freeing space is a separate, optional step: see Free up space.

Yes, as an optional step that is off until you turn it on. Klasor moves messages to Deleted Items in Outlook only when their exported copy is verified, keeps unread, flagged and recent messages, and asks you to confirm before anything moves. You can restore any message it moved. How it works.

Klasor works with classic (Legacy) Outlook for Mac. Gmail added as IMAP, iCloud Mail, other IMAP accounts and local folders can be labeled and exported; freeing space is designed for IMAP accounts and is in BETA: we tested it with Gmail added as IMAP and with an IMAP account on a private mail server (Postfix 2.10.1). On other IMAP accounts the final “Free the space now” step stays off unless you allow it in Advanced; Exchange and POP are not supported. Accounts added with “Sign in with Google” are not visible to Klasor, and Exchange Online no longer connects to classic Outlook. The full table and how to add an account.

The license server receives a Mac ID (a hash of your Mac), the app version and the IP address; during the trial, also the number of messages processed. Never messages, subjects or folder names. Details in the privacy policy. The site uses no cookies.

macOS 13 or later, Intel or Apple Silicon (the app is universal), and Microsoft Outlook for Mac, classic (Legacy) version. “New Outlook” cannot be controlled.

From October 2026 Microsoft stops classic Outlook from connecting to Exchange Online. As long as you use classic Outlook with a mailbox it can still connect to (for example on-premises Exchange, until October 9, 2029), Klasor should work with it; on-premises Exchange is the one case we have not tested yet (see Which accounts work). An engine that does not depend on classic Outlook is under research (see the roadmap). Details and sources: Legacy Outlook.

Yes, when the account is added to classic Outlook as an IMAP account (for Gmail, with an app password). With IMAP accounts, labels may stay local, in Outlook on that Mac; with Exchange they sync. A Gmail account added with “Sign in with Google” is not visible to Klasor: add it again as IMAP. The official sources do not say what happens to these accounts after October 2026, so test with the free trial. Which accounts work, and how to add them.

The trial ends after 7 days or 1,000 messages labeled or exported, whichever limit is reached first. Then the app shows the license screen and automatic runs stop. Your messages, labels and exports stay untouched. Enter your key and carry on.

Yes: 14-day money-back guarantee, no reason needed. Refund policy.

Each Mac has its own key. A plan for 5 Macs means 5 keys, one for each Mac. If you change a Mac, you deactivate the key from the app and activate it on the other. A key can be moved to a different Mac once; reinstalling on the same Mac does not count. If the Mac breaks or is sold, write to support@klasor.app.

Write to support@klasor.app. The error code shown in the app (like KL-123) or the report from Diagnostics helps us answer quickly. The Diagnostics page (About Klasor → Diagnostics) generates a report you copy and send.

Yes. The license is checked periodically (a signed 14-day “lease”, plus 7 grace days); otherwise Klasor works locally.

Only with your permission, and only a few: a new version, an export that finished or paused, a license that is about to expire, and a reminder if you have not scanned in 7 days while automation is off. macOS asks the first time; if you say no, Klasor works the same. Scheduled runs never show notifications.

Three levels of detail in the same app, all included in every plan. Standard is the calm default; Advanced opens rows in place, with a preview and a Simulate button; Pro adds a permanent side panel and a ⌘K search. How to switch.