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!Linux mail command

[http://www.linuxhomenetworking.com/wiki/index.php/Quick_HOWTO_:_Ch21_:_Configuring_Linux_Mail_Servers]

Incoming mails are under
{{{
/var/mail/
}}}
Config under
{{{
/etc/mail/sendmail.mc
}}}
You can find out if you simply try
{{{
mail
}}}