4.2.6 FiltersFilters are a convenient method of automatically processing incoming mail. They useaspects of the mail, such as sender or size, to move mail to certain folders, delete un-wanted mails, bounce mails back to the sender, or perform a number of other actions.Setting Up a FilterTo create a filter from scratch, select Settings → Configure Filters. To create a filterbased on an existing message, right-click the desired message then select Create Filterand the desired filter criteria.Select the match method for filter criteria (all or any). Then select criteria that appliesonly to the desired messages. In Filter Actions, set what the filter should do to themessages that meet the criteria. Advanced Options provides control over when the filteris applied and whether additional filters should be considered for these messages.Applying FiltersFilters are applied in the order listed in the dialog accessed with Settings → ConfigureFilters. Change the order by selecting a filter and clicking the arrow buttons. Filtersare only applied to new incoming messages or sent messages as specified in the filter'sadvanced options. To apply filters to existing messages, right-click the desired messagesand choose Apply Filter and the desired filter.If your filters do not act as expected, monitor them with Tools → Filter Log Viewer.When logging is enabled in this dialog, it shows how messages are processed by yourfilters and can help locate the problem.4.3 ContactsThe contacts component uses KAddressBook. Configure it with Settings → ConfigureKAddressBook. To search for a particular contact, use the search bar. With Filter, selectto display only contacts in a certain category. Right-click a contact to open a menu inwhich to select from a variety of options, such as sending the contact information in ane-mail.118 KDE User Guide