TabMail

Developer's DescriptionBy SDLGamesSend, receive, and manage your e-mails.TabMail for Windows is a mail user agent (MUA) for sending, receiving and managing your email messages. It's small and fast, conforms to Internet Standards and supports Unicode characters. Some other properties:Simple view of compound messages.Message-thread can span many mailboxes.Warn when open (or save) dangerous attachments.Easy PGP message encryption/decryption.Automatic attachments compression.SMTP and POP3 authentication.Multi-user and multi-account.