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Solaris™ 8 Advanced System Administrator's Guide, Third Edition by Janice Winsor

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Mail Addressing

The mail address contains the name of the recipient and the system where the mail message is delivered. When you are administering a small mail system that does not use a nameservice, addressing mail is easy: Login names uniquely identify users.

Mail addressing for more complex sites is also easy when you use DNS Mail Exchange (MX) records.

UUCP Route-Based Addressing

UUCP route-based addressing requires the sender of an e-mail message to specify not only the local address (typically a user name) and its final destination but also the route that the message must take to reach its final destination.

NOTE

UUCP route-based addressing is shown here for historical reasons. These days, almost no one uses this form of addressing.

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