Re: Outgoing SMTP Servers

[Owen DeLong <owen () delong com>]

On Oct 25, 2011, at 3:29 AM, <Valdis.Kletnieks () vt edu> wrote:

> On Tue, 25 Oct 2011 02:35:31 PDT, Owen DeLong said:
>
> > If they are using someone else's mail server for outbound, how, exactly do you control
> > whether or not they use AUTH in the process?
>
> 1) You don't even really *care* if they do or not, because...
>
> 2) if some other site is running with an un-AUTHed open port 587, the miscreants will
> find it and abuse it just like any other open mail relay. The community will
> deal with it quick enough so you don't have to. And at that point, it's the
> open mail relay's IP that ends up on the block lists, not your mail relay's IP.
But that applies to port 25 also, so, I'm not understanding the difference.

> Other people running open port 587s tends to be quite self-correcting.

At this point, so do open port 25s.

Owen