WorldCast is a free two-in-one tool: A free bulk email software and also an e-mail address validator. It detects many of the invalid addresses that exists on many emailing list, reporting errors like bad email addresses, time-out operations, etc., providing a detailed log of the entire delivering process. Features a syntax-oriented editor, mailmerge capabilities, HTML editing and preview support, attachments, spell-checker, Thesaurus, etc.