Wietse Venema <wietse@porcupine.org> wrote:
>
> An SMTP MTA is required to correctly recognize user@[ip.address]
> as local. That's the rules, like it or not. These address forms
> are actually being used, like it or not.
Yes. MTAs have to work around this; qmail does a reasonable job. Why
not look at how djb does this? See ipme.c.
> It also is desirable for an MTA to treat clients on local subnets
> different than strangers that happen to be on the same class A,
> like it or not. Failure to do so can make one end up on black
> lists, like it or not.
Having an MTA automatically treat clients on "local subnets" differently
than the rest of the 'net at large is definitely _not_ desirable. The
administrator should have to explicitly configure the MTA to grant
additional access to every subnet he desires; anything else is begging
for trouble in the form of absued relaying privileges.
Charles
-- ----------------------------------------------------------------------- Charles Cazabon <linux@discworld.dyndns.org> GPL'ed software available at: http://www.qcc.sk.ca/~charlesc/software/ ----------------------------------------------------------------------- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Fri Sep 07 2001 - 21:00:36 EST