Vista NetMail is an email client software with built-in anti-spam and filtering abilities. It retrieves messages from the server and can process them without actually downloading the mail to your computer. You can preview messages, deleted selected items, apply filters and more. Selected messages can then be downloaded and are stored in the Netmail database. The software can be used as your only email client or as a supplement for message previewing and filtering.

Vista NetMail is free, fast and flexible email client. The software supports multiple email accounts, lets you automatic sorting of incoming messages based on preset criteria and comes with many handy features for handling mail efficiently.
If you have several external mailboxes at different ISPs you will not need to enter a new password and adjust the settings every time.
Sort your mail by date, size, sender, subject, colour, in ascending or descending order The program will be useful for both electronic business experts and all those who can set up a message exchange with existing customers and potential clients on a professional level. NetMaill allows to change the interface language on the fly without a need to restart the program. Options are also provided for standard Email clients: support of attachments, addressbook, multipart html messages, message searches based on keywords, ... and much more. The software is free - download it and see if it has the features you need.

The license of this software is Freeware, you can free download and free use this email client software.