Options are endless when it comes to email clients for Linux systems. With Kubuntu you are presented with KMail by default either as a standalone or a part of the Kontact personal information manager. Other popular Linux clients include Mozilla Thunderbird, Evolution, Mailody, and even Mutt the command line client.
KMail is the email component of Kontact, the KDE personal information manager. KMail by itself is similar in functionality to the Microsoft Outlook Express application whereas Kontact is as full featured as Microsoft Outlook. The following are just some of the features of KMail.
IMAP, POP3 ve SMTP desteği.
SSL, TLS ve DIGEST-MD5 güvenli giriş desteği.
PGP ve GnuPG imzaları ve şifreleme desteği.
HTML reading, spam filtering, internal character sets, search and filter functions, spell checking, and more.
More information on KMail and configuration can be located in The KMail Handbook. If you plan on using KMail within Kontact also refer to The Kontact Handbook.