JEditorCombo is a Java application with a tabbed interface. One tab offers RTF document editing. The other tab offers plain text editing. The plain text editor also offers the ability to send the current document as the body of an email. No additional APIs are required to send the email, since it is handled internally. Both editors have undo and redo capability.
JPim is an email and contact management tool which offers auto-completion for recipient addresses, viewing of plain and HTML email, viewing of email headers, adding of attachments to email and saving attachments received, full contact management features, an easy to modify quick contact list, and the ability to reply to and forward email.