The process of moving messages to folders will vary depending on your webmail client of choice:

Roundcube

To move messages from one folder to another in Roundcube, you need to:

  1. Open the Mail task from the main menu.
  2. Select the folder containing the specific messages from the folder list.
  3. Select the specific messages from the message list.
    Note: You can select multiple messages using the Ctrl (or ⌘ Command if you use a Mac keyboard) and ⇧ Shift keys on your keyboard.
  4. Drag the messages from the message list, and drop them on the destination folder in the folder list. If the destination folder is a subfolder that is not currently visible, hold your mouse over its parent folder to get its subfolders displayed. To save a copy of the selected messages in the destination folder, press the ⇧ Shift key on your keyboard while dropping the messages on the destination folder, and select the Copy option from the menu that appears.
    Alternatively, you can click on the More button from the top toolbar, select the Move to... option (if you wish to copy the selected messages, choose the Copy to... option), and specify the destination folder.

Additional details on how to move messages to other folders are available in the Organizing your Email Messages article from Roundcube's official documentation.

Webmail Classic

If you wish to move a single message via Webmail Classic, you should:

  1. Select the Inbox tab from the main menu.
  2. Click on the folder containing the specific message from the Folder Status section (folder list).
  3. Read the message by clicking on the sender's name/e-mail address or on the subject of the message.
  4. Select the destination folder from the Put in Folder drop-down menu.
  5. Click on the OK button from the pop-up confirmation window.

You can also move multiple messages at once by following these steps:

  1. Select the Inbox tab from the main menu.
  2. Click on the folder containing the specific messages from the Folder Status section (folder list).
  3. Select the checkboxes in front of the specific messages from the message list. If you wish to select all the messages displayed in the message list, you should select the topmost checkbox.
  4. Select the destination folder from the Put in Folder drop-down menu.
  5. Click on the OK button from the pop-up confirmation window.