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CraigBox |
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!!NAME |
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aliases - aliases file for sendmail |
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!!SYNOPSIS |
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__aliases__ |
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!!DESCRIPTION |
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This file describes user ID aliases used by sendmail. The file resides in /etc/mail and is formatted as a series of lines of the form |
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;: name: addr_1, addr_2, addr_3, . . . |
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The ''name'' is the name to alias, and the ''addr_n'' are the aliases for that name. ''addr_n'' can be another alias, a local username, a local filename, a command, an include file, or an external address. |
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;__Local Username__ : username |
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;: The username must be available via getpwnam(3). |
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;__Local Filename__ : /path/name |
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;: Messages are appended to the file specified by the full pathname (starting with a slash (/)) |
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;__Command__ : |command |
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;: A command starts with a pipe symbol (|), it receives messages via standard input. |
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;__Include File__ : :include: /path/name |
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;: The aliases in pathname are added to the aliases for ''name.'' |
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;__E-Mail Address__ : user@domain |
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;: An e-mail address in RFC 822 format. |
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Lines beginning with white space are continuation lines. Another way to continue lines is by placing a backslash directly before a newline. Lines beginning with # are comments. |
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Aliasing occurs only on local names. Loops can not occur, since no message will be sent to any person more than once. |
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After aliasing has been done, local and valid recipients who have a ``.forward" file in their home directory have messages forwarded to the list of users defined in that file. |
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This is only the raw data file; the actual aliasing information is placed into a binary format in the file /etc/mail/aliases.db using the program newaliases(1). A newaliases command should be executed each time the aliases file is changed for the change to take effect. |
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!!SEE ALSO |
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newaliases(1), dbm(3), dbopen(3), db_open(3), sendmail(8), SENDMAIL Installation and Operation Guide, SENDMAIL An Internetwork Mail Router. |
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!!BUGS |
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If you have compiled sendmail with DBM support instead of NEWDB, you may have encountered problems in dbm(3) restricting a single alias to about 1000 bytes of information. You can get longer aliases by "chaining"; that is, make the last name in the alias be a dummy name which is a continuation alias. |
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!!HISTORY |
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The __aliases__ file format appeared in 4.0BSD. |
