qmail Doesn t Use etchosts
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qmail Doesn't Use /etc/hosts
qmail never uses /etc/hosts to determine the Internet Protocol (IP) address associated with a host name. If you use names in control files, qmail must have access to a name server.
It is possible to run qmail on systems without access to a name server. Hosts in control files can be specified by IP address by enclosing them in square brackets ([]), for example:
[10.1.2.219]
Actually, the square brackets aren't always necessary-but it's a good idea to use them anyway.
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