Custom Filters can be created and used in individual folders, or applied to wider-scale searches.
Click on a HotSpot for further information.
This provides a type of quick-search in a folder, based on text in header lines, as well as various flags and other information held in the database.
From: The From: line in the header - the writer of the message.
To: The To: line in the header, the main recipient(s) of the message.
Subject: The Subject: line in the header.
Raw Subject: The Subject: line in the header stripped of any leading Re: or Fw:
Label: The label allocated to this message (from Message 
Flag Messages Edit Label)
Folder: The Originating Folder, the folder that was selected when the message was composed.
Date Sent: The Date: line in the header.
Date Received: The date the message was received by MailCOPA - NOTE that only the date can be used. The time cannot be searched for.
Length: The size of the message as the number of lines.
Category: The category (or categories) allocated to this message.
Seen: Whether the message has been marked as Seen.
Has HTML: Whether the message has an HTML Format section
Held: Whether the message has been marked as Held from Message Flag Messages Hold - NOTE this only applies to messages in the Outbox.
Forwarded: Whether the message has been forwarded to someone else.
Urgent: Whether the message was marked as Urgent.
Has Attachments: Whether the message has attachments.
Kept: Whether the message was marked as Kept from Message Flag Messages Keep
Locked Unseen: Whether the message was marked as Locked Unseen from Message Flag Messages Lock Unseen - only applies to messages currently marked as Unseen
Outbound: Whether this was a copy of a message composed in MailCOPA
Receipt Received: Whether a Read Receipt has been received for the message.