Penning email from a user "other" than tfilePro

[Fairlight]

On Wed, Aug 25, 2004 at 10:08:52AM -0400, Bill Vermillion, the prominent pundit,
witicized:
> > good to go. IOW, you might not be able to send outbound as
> > john at fairlite.com from your mail server, but that's a function
> > of the MTA not being configured as an open relay, not of
> > Lightmail--allow it at the MTA level (or use an open relay
> > somewhere, I know they exist! *chuckle*) and it would work
> > fine.
> 
> If you send from your machine as some other domain that is not what
> is known as an open relay.   A open relay is one that you can send

I know that.  It's simply an authorised relay/masquerade then.  I said (as
quoted above), allow it at the MTA level (ie., make it masquerade or at the
-very- least allow relay by making the domain a local domain as far as the
MTA is concerned) -or- use an 'open relay', which was pretty much in jest.

> What will happen is that many machines will reject that as
> the IP from which the mail is sent does not match the MX records
> for that domain.    

Agreed.

> I just wanted to clear up your use of open-relay.

Wasn't so much my use of it as you not reading between my shorthand lines.
I never meant to imply that including a domain as local to the MTA for
relaying purposes made a machine an 'open relay'.  I was saying you could do
either/or (the latter of which was in jest); I just didn't spell out the
full details as verbosely as you did.

mark->
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