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sendmail    
The {BSD} Unix {Message Transfer Agent} supporting
mail transport via {TCP/IP} using {SMTP}. Sendmail is
normally invoked in the {background} via a {Mail User Agent}
such as the {mail} command.

Sendmail was written by {Eric Allman} at the {University of
California at Berkeley} during the late 1970s. He now has his
own company, {Sendmail Inc.}

Sendmail was one of the first programs to route messages
between {networks} and today is still the dominant e-mail
transfer software. It thrived despite the awkward {ARPAnet}
transition between {NCP} to TCP protocols in the early 1980s
and the adoption of the new SMTP Simple Mail Transport
Protocol, all of which made the business of mail routing a
complex challenge of backward and forward compatibility for
several years. There are now over one million copies of
Sendmail installed, representing over 75% of all Internet mail
servers.

Simultaneously with the announcement of the company in
November 1997, Sendmail 8.9 was launched, featuring new tools
designed to limit {junk e-mail}. SendMail 8.9 is still
distributed as {source code} with the rights to modify and
distribute.

Latest version: 8.9.1, as of 1998-08-25.

The command

sendmail -bv ADDRESS

can be used to learn what the local mail system thinks of
ADDRESS. You can also talk to the Sendmail {daemon} on a
remote host FOO with the command

telnet FOO 25

(1998-08-25)


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sendmail查看　sendmail　在百度字典中的解释百度英翻中〔查看〕
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