[CentOS] dumb sendmail question -- how to get outbound messages to use "example.com" instead of hostname?

Tue Jul 3 02:48:35 UTC 2007
Dan Anderson <dan.w.anderson at gmail.com>

On 7/2/07, Richard Chapman <rchapman at aardvark.com.au> wrote:
> My theory is that the user "root" is a "trusted
> user" and is allowed to override outgoing email addresses. I think this
> is overriding the masquerading. I suspect that the masquerading will
> work for non-trusted users.

You are correct. Root is exposed by default:

"There are always users that need to be "exposed" -- that is, their
internal site name should be displayed instead of the masquerade name.
Root is an example (which has been "exposed" by default prior to 8.10).
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