From the developer: "AXIS RapidMail is a Powerful Multi-threaded Bulk Email sending program that allows you to send Email messages to a large number of recipients. It delivers the message directly to the recipient's mailbox without using your ISP's SMTP Server. Blazing Fast Mail Delivery - you can send 50 or more mails simultaneously. Directly import your existing Address list from any CSV File or clipboard. Find/delete invalid/duplicate addresses from your address list. AXIS RapidMail is a good application for sending Product updates, newsletters, pricelists etc. to multiple recipients. Compare, Combine Mailing Lists. Remove Duplicates. Check and remove invalid email Ids (no bounced messages later on)."