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Mail Storage Guard Description |
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Mail Storage Guard is an extension for Microsoft Exchange 2000/2003 and IIS SMTP servers, designed to protect your mail server from unneeded promotional mail (spam), prevents mail relaying, mail bombing and NDR attacks. The protection is realized both on the level of SMTP protocol and on the level of message delivery to storage.
Mail Storage Guard is easy to install and set up, so no special training is necessary either for the user or for your administrator. Mail Storage Guard is fully integrated with Microsoft Exchange Server.
Program Features:
Mail Storage Guard processes all incoming emails which may come to your SMTP server and if the message is spam then it may be rejected, deleted, pointed to postmaster or moved to an unwanted mail folder.
Protection at SMTP protocol level
Protection at SMTP protocol level lets us block certain messages, accepting only the head of the message. Such a protection method reduces incoming internet traffic and excludes any harmful program getting through to your server.
Protection at transport level
Protection at transport level lets you manipulate the message coming through to your server, but before it actually arrives in the receiver’s mail box. Such a protection method lets you block the message but at the same time send it on to a mail server administrator for analysis.
Message delivering only to registered receivers
Microsoft Exchange receives all incoming messages by SMTP protocol. If the server cant find the message recipient inside the system then the message is returned to the sender (non-delivery report, NDR). This scheme has serious safety flaws as the sender’s address isnt checked and a violator can easily specify any sender address. Mail Storage Guard is able to reject all misaddressed mail or point such messages to a specified mailbox. |
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