# Το παράθυρο επιλογή φίλτρων

This window is divided in two lists: the left one displays all available filters, and the right part displays all filters to be applied on the mailbox (the name of which is shown in the window title). See the filters window section to see how to set up filters.

The right list has three columns. The first one contains the filters name. The two others tells you if the filter will be automatically applied: e.g. if a dot is displayed in the second column (On reception), this tells you that whenever new messages arrived in this mailbox, they will be filtered by the corresponding filter (Note: the filter is applied only on the new messages, not the entire mailbox; this is similar to the use of procmail). In the same way, if a dot is displayed in the third column (On exit), the filter will be applied to the entire mailbox when you exit Balsa.

Note: the On exit feature is not yet implemented.

When you tell Balsa to apply several filters on the same mailbox (i.e. when you put several filters in the right list), only the first match counts: the filters are applied in the specified order and the first that matches on the current message will be applied but not the following ones.

There are two buttons between the filters lists:

The Add button: moves the selected filters from the left list to the right one, adding more filters to be applied to the mailbox.

The Remove button: removes the currently selected filter in the right list and puts it back in the left list.

The Up and Down buttons under the right list serve to reorder the filters that are to be applied. This is a sort of priority between filters, because if several filters could match the current message, only the first one will be applied. The Apply Now button applies all filters of the right list to the entire mailbox immediately (be patient, this can take a quite a long time on big mailboxes or remote ones).

You can also use this dialog to apply a filter to a mailbox without actually attaching it to the mailbox. Select one or more filters in the left hand list, and click the Apply Selected button below that list.

There are three buttons below the filters lists:

The OK button: saves the list of filters associated to the mailbox. Note that this does not apply the filters to the mailbox. It is useful only when you have set up automatic filters, or when you have to manually apply a lot of filters frequently to this mailbox: the next time Balsa will reload the saved filters and you will only have to press the Apply button.

The Cancel button: this discards any changes and closes the dialog box.

The Help button: opens this help window.