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Essential System Administration Pocket Reference by Æleen Frisch

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Electronic Mail

/etc/aliases file

alias: name [name ...]

Define a mail alias as the specified list of user(s) and/or other aliases. Aliases can be nested. An initial backslash defines a terminal alias (not subject to further expansion).

This file is stored in /etc/mail/aliases under FreeBSD and HP-UX.

sendmail

File/directory locations

Boot script configuration file

FreeBSD:

/etc/rc.conf:

 

 

sendmail_enable=″YES″

HP-UX:

/etc/rc.config.d/mailservs:

 

 

export SENDMAIL_SERVER=1

Linux:

/etc/sysconfig/sendmail:

 

 

START_SENDMAIL=″yes″

Solaris:

/etc/default/sendmail:

 

 

DAEMON=yes

sendmail.cf directory

Usual:

/etc/mail

 

 

AIX:

/etc

Linux:

/etc

Configuration file build area

AIX:

/usr/samples/tcpip/sendmail/cf

FreeBSD:

/usr/share/sendmail/cf/cf

HP-UX:

/usr/newconfig/etc/mail/cf/cf

Linux:

/usr/share/sendmail-cf/cf (Red Hat)

 

/usr/share/sendmail/cf (SuSE)

Solaris:

/usr/lib/mail/cf

syslog mail facility messages

FreeBSD:

/var/log/maillog

HP-UX:

/var/adm/syslog/mail.log

Linux:

/var/log/maillog (Red Hat), /var/log/mail (SuSE)

Solaris:

/var/adm/messages

sendmail

sendmail [options]

Main sendmail server program.

Options

-bd -qnm

Run as a daemon, checking the queue every n minutes.

-bp

List the sendmail work queue (/var/queue/mqueue).

-bt

Interactive address translation mode. Subcommands:

/mx host

List MX records for host.

/map map-name address

Translate a mapped address.

/try smtp address

Address translation for mailer/recipient. Use ...

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