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1.1 root 1: SENDMAIL -- An Internetwork Mail Router
2: Eric Allman
3: Britton-Lee, Inc.
4:
5: Routing mail through a heterogenous internet presents many new
6: problems. Among the worst of these is that of address mapping.
7: Historically, this has been handled on an ad hoc basis. However,
8: this approach has become unmanageable as internets grow.
9:
10: Sendmail acts a unified "post office" to which all mail can be
11: submitted. Address interpretation is controlled by a production
12: system, which can parse both old and new format addresses. The
13: new format is "domain-based", a flexible technique that can
14: handle many common situations. Sendmail is not intended to perform
15: user interface functions.
16:
17: Sendmail will replace delivermail in the Berkeley 4.2 distribution.
18: Several major hosts are now or will soon be running sendmail.
19: This change will affect any users that route mail through a sendmail
20: gateway. The changes that will be user visible will be discussed.
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