Click on the OK button from the confirmation window to remove the messages flagged for deletion from the selected folder.Select the Purge option from the Folder actions drop-down menu.Open the folder by clicking on its name from the Folder Status section (folder list).To compact (purge) a mailbox folder via Webmail Classic, you should: Additional details are available in our the Configuring message deletion settings article. Note: You can automatically compact your Inbox folder upon logout by enabling the Compact Inbox on logout setting in Roundcube. Select the Compact option from the menu to delete the messages that were marked for deletion.Click on the 'Folder actions' button represented by a vertical ellipsis symbol (⋮) in the Elastic theme or a gear icon in the Larry theme.Select the folder that you wish to compact from the folder list.You can compact (purge) a mailbox folder in Roundcube by following these steps:

The actual process of compacting/purging mailbox folders will vary depending on your webmail client of choice:

You can learn more about the supported message deletion settings supported in Roundcube and Webmail Classic in our Configuring message deletion settings article. Note: Compacting (purging) mailbox folders is required only if you manage your mailbox via an e-mail application that is configured to flag/mark messages as deleted instead of moving them to the trash folder or deleting them permanently.

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