If your primary goal is to clear space on the server while keeping a copy of all emails on your computer, use . These are stored only on your PC and do not sync back to the server. FORCE download of ALL emails - Mail - eM Client
Click . eM Client will now begin a background sync to cache all server data locally. 2. Download Specific Folders Only em client download all emails
The most effective way to ensure every message is stored locally is to adjust the account-wide sync settings. Open . Navigate to Menu > Accounts . Select your email account from the left-hand panel. Click on the IMAP (or Exchange ) tab at the top. Scroll down to the Sync Options section. Check the box for "Download messages for offline use" . If your primary goal is to clear space
(Optional) Check if you want files to be available without an internet connection. eM Client will now begin a background sync
To download all your emails for offline access in , you must enable the "Download messages for offline use" setting in your account configuration. By default, eM Client only downloads message headers to save space and speed up synchronization, meaning the full body and attachments are only fetched when you click on a specific email.