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Please note that the /etc/mail/local-host-names file is for all type of configuration.
The /etc/mail/local-host-names file is read to obtain alternative names for the local host. One use for such a file might be to declare a list of hosts in your network for which the
local host is acting as the MX recipient. On that machine we simply need to add the names of machines for which it i.e. mail.openna.com, will handle mail to /etc/mail/local-host-names.
Here is an example:
Example 22-2. Alternative names
Create the local-host-names file, touch /etc/mail/local-host-names and add the following line:
# local-host-names - include all aliases for your machine here.
openna.com
deep.openna.com
www.openna.com
win.openna.com
mail.openna.com
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With this type of configuration, all mail sent will appear as if it were sent from
openna.com, and any mail sent to
www.openna.com or the other hosts will be delivered to
mail.openna.com our mail Hub.
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Please be aware that if you configure your system to masquerade as another, any e-mail sent from your system to your system will be sent to the machine you are masquerading as. For example, in the above illustration, log
files that are periodically sent to <root@www.openna.com> by the cron daemon of Linux would be sent to <root@mail.openna.com> our Mail Hub.
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