Re: [Exim] Basic setup question

On Wed, May 30, 2001 at 11:22:19AM +0100, S. Joel Bernstein <joel@???> wrote:
>> On Sat, May 26, 2001 at 11:36:02AM +1000, Andrew Johnson <daeron@???> wrote:
>>> I'm new to exim and would appreciate sugguestions on how to best set
>>> it up to accept only specific user/domain combinations,
>>> e.g. john@??? fred@??? joe@???
>>> - of course none of these people would have accounts on the MTA
>>> machine which would be mail.jkl.com
>>
>> You don't really want to set up envelope-from based relaying, do you?
>
> *dummy mode on* :-D

What I'm trying to say is:
It's a bad idea to control relaying by checking the envelope-from (which
is given via 'MAIL FROM:' in smtp dialogue) because everyone can spoof
this.
You should consider using smtp authentification.