Re: Can we please refuse mail to the list from list addresses?

[Magnus Hagander <magnus(at)hagander(dot)net>]

Marc G. Fournier wrote:
> 
> 
> --On Thursday, November 29, 2007 13:39:09 -0500 Andrew Sullivan 
> <ajs(at)crankycanuck(dot)ca> wrote:
> 
>> On Thu, Nov 29, 2007 at 01:00:07PM -0400, Marc G. Fournier wrote:
>>> And is there a reason to assume spammers are that stupid as to not switch to
>>> using 587 if that does become some sort of standard?
>> Um, that you can't?  One of the points of the new port was that it _only_
>> allowed authenticated submission.
> 
> 'k, sorry, you did say that in your last to me ... but, wouldn't *that* imply 
> that it is suddenly now okay to open up port 25?  What I think is losing me 
> here is why add a new port, when port 25 itself *should* already be 'only 
> allowed authenticated'?  Or, when you say "Only", do you mean even from the 
> local network, no exceptions?

587 is access from anywhere, *always* authenticated, and can relay.
25 is for local delivery only, can *never* relay, but does not need auth.

At least that's how I understand it - I may have missed some details :-)

//Magnus