Home > MESSAGING > Mail Messaging System > Main Functions   Realtime transfer Mail Messaging System is the fastest way to deliver messages to Inmarsat terminal of the ship. Mail messaging system provided by Shipping21 adopt direct assess system from the Shipping21 server to Land Earth Station. In this way we guarantee the fastest way of message transfer.   Transfer resultscheckable Auto-reply system will give you the positive delivery notification (PDN) when the transfer is successful, or the Negative Delivery Notification(NDN) when not successful. This system works right after you send messages.     Synchronizing When you send message with outlook, your own Shipping21 web site will save the sent messages in "Sent messages box". Sent message box will allow you to re-check the transfer result of each messages at the bottom of it.   Anti virus and Anti Spam function The world largest virus solution group, SOPHOS will protect you from virus and spam.   Automated numbering function Reference Number is given for every single message sent by users of company. Ref. No is shown in the list of Sent messages box. You can check this no. when you browse each sent message. This feature can help you communicate with staffs using Ref. No.   Generic Transfer function You can send the same message to hundreds of ships at the same time.