> circumstances) a private majordomo list:
>
> telnet your.mail.host 25
> helo
> expn your.private.list
> quit
>
> So if it is very important to you that the members of a list NOT be known
> to the world, you should take the above into consideration.
>
It's not very tough to avoid this.. You can just instead of
using an :include: to include the subscriber list write a very small
script which just runs sendmail on a subscriber list which only daemon
can read (and wrap the script using wrapper)
> Versions 8 and later of sendmail do allow you some leeway in allowing the
> world to execute the expn command, but whether it works at your site or
> not depends on how sendmail was installed.
>
> Hope this helps. Ted Soldan - Michigan Tech University
>
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