Lock down the all-staff email list? sendmail, alias, majordomo?

[Chuck Robey]

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brad davison wrote:
> Our company has a sendmail server 8.13.8 running on FBSD 6.2 with procmail.  We currently have an alias set up for our all-staff email (we only have about 200 users).  Someone recently sent out an email to the all-staff that someone didn't like, so now I have to restrict who can send to it.
> 
> I have disabled the alias, since I didn't know if there was a way to restrict who can send to aliases, but is there a good way to have a list of users that either a) doesn't give the list name in the email, or B) a list program like majordomo or something that I can keep people from using who isn't 'the boss'?
> 
> What is the best way to have a list that only certain users are able to send to?
> I am open to suggestions that will get me out of this situation. 
> 

I don't have your setup, but I could guess what I would do with mine: I wouldn't
try to stop folks from sending to that address, instead, I would block it on the
reception side, so only a given set can get thru to be re-echoed to.  Blocking
on the receive side, that's something that is very well covered in a huge number
of tools, blocking on the sending, that's one heck of a lot more difficult.
Wouldn't it give you the same effect, or does the filtering occur at the wrong
point in your processing, to be able to block the retransmission (time to test it).

> Thanks
> 
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