PLANET CS-2000 - Manual (Page 349)

CS-2000 UTM Content Security Gateway User’s Manual
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7.2.8 The Advanced Description
The so called mail server is the medium between the mail send and retrieve process. The E-mail address
format is: For example, [email protected] , the mail account is in front of the @, the server name is after
the @.
When MIS engineer send an e-mail to [email protected] , MIS engineer mail sending software will first
search the destination mail server name which correspond to the IP and MX record. The e-mail will be first
send to the MX mail server which correspond to the MX record , then the MX server send the mails to the
destination address ( It is the yahoo.com.tw mail server ) . If the mail server corresponds to many MX records,
then the E-mail will be sent to the top priority MX server, then continue the process. If there is no correspond
MX record except the IP record, the mail will be first sent to user mail server and transfer to yahoo.com.tw
mail server. The yahoo.com.tw mail server will send the mail to every recipient according to the Account in
front of the @.