Installing and Administering Internet Services

Chapter 4 129
Installing and Administering sendmail
Creating sendmail Aliases
/usr/sbin/newaliases
This command creates the aliases database, which is located in the
file /etc/mail/aliases.
Table 4-1 Things That May Be Included in a Mailing List
user_name A local user name will be looked up in the aliases database unless
you put a backslash (\) before it. To prevent sendmail from
performing unnecessary alias lookups, put backslashes before
local user names. Example:
local_users: \amy, \carrie, \sandy, \anne,\david,\tony
remote_users: mike, denise
mike: [e-mail]
denise: bigvax!amlabs!denise
remote_address The remote address syntax that sendmail understands is
configured in the sendmail configuration file and usually
includes RFC 822 style addressing (user@domain) and UUCP
style addressing (host!user). Example:
chess_club: [e-mail], marie@buffalo,
bigvax!amlabs!denise
filename An absolute pathname on the local machine. sendmail appends a
message to the file if the following conditions are true:
• The file exists, is not executable, and is writable by all.
• The directory where the file resides is readable and searchable
by all. Example:
public: /tmp/publicfile
terminal: /dev/tty
Mail addressed to public is appended to /tmp/publicfile.
Mail addressed to terminal appears on the sender’s terminal.