The
myorigin parameter specifies the domain that appears in
mail that is posted on this machine. The default is to use the
local machine name, $
myhostname, which defaults to the name of the
machine. Unless you are running a really small site, you probably
want to change that into $
mydomain, which defaults to the parent
domain of the machine name.
For the sake of consistency between sender and recipient addresses,
myorigin also specifies the domain name that is appended
to an unqualified recipient address.
Examples (specify only one of the following):
/etc/postfix/main.cf:
myorigin = $
myhostname (default: send mail as "user@$
myhostname")
myorigin = $
mydomain (probably desirable: "user@$
mydomain")
