Clyton is an excellent and very professional mail client that has many options, functions and tools. It is notable, especially for its powerful antispam and antivirus.
Among Clyton's features, it should be noted that it allows you to customize the fields in the address book, as well as export and import all that information easily. It also allows you to send personalized emails by filtering recipients by different criteria.
In Clyton you can create white lists, black lists (of blocked senders), attach files, create HTML emails from templates, add background images to the email, and so on. It supports working with POP3 and IMAP4 protocols (it also works with GMail and Yahoo).
The emails you receive can be organized in different folders; likewise, actions can be applied to multiple emails at once (deleted, resend, save, etc.). You can also configure automatic deletion of emails that have a certain age. Clyton also has an agenda, message rules, aesthetic skins, and so on.
You can free download Clyton 32, 64 bit and safe install the latest trial or new full version for Windows 10 from the official site.