Thanks, but my real concern is that all the mail NOT go through a SINGLE
mail server (in terms of bandwithd). If I do what you suggested
[EMAIL PROTECTED] still has to go through location A (the full message,
including attachements has to be received at that location) which means
that it becomes a bandwidth bottle-kneck (and since there will be many
locations all with very little bandwidth supporting a large organization
this can be a problem). At least that's how I understand it -- if you
know some way that location A could tell the outside server just to route
directly to location B, that's what I'm really looking for (sort of a SMTP
user-based server resolution). Please correct me if I misunderstood what
you said or if it doens't require full mail routing through location A.
By the way, an entirely qmail solution shouldn't be a problem since the my
clients seem to like the idea of linux and I am a big fan of qmail ;->
Thanks anyway,
Sheer
On Fri, 4 Aug 2000, Russell Nelson wrote:
> Sheer El-Showk writes:
> > I would like to host mail for a single domain (ie all users should be
> > [EMAIL PROTECTED]) on several (geographically distributed) machines,
> > with users in each area receiving their mail at the local mail sever. The
> > hard part is, as bandwidth is a limiting issue, I don't want all the mail
> > to be forwarded through a single host (eg if user1 at location A is
> > sending a 5 MB attachement to user2 at location B, I don't want that to
> > have to bounce off some central mail sever at location C). This means
> > that all the mail servers serve the same domain name but have to be
> > distinguishable (via DNS or sonmething sendmail does) by users served.
>
> Qmail lets you implement this using virtualdomains. You can
> virtualize a domain on a per-use basis. So tell the qmail running at
> location A that [EMAIL PROTECTED] is actually [EMAIL PROTECTED]
>
> Unfortunately, both sites A and B have to be running qmail and must be
> configured with the user table. There's no global way to do what you
> want. I suggest that you colocate the central mail server somewhere
> where there's plenty of bandwidth, and configure it with the user table.
>
> --
> -russ nelson <[EMAIL PROTECTED]> http://russnelson.com | If you think
> Crynwr sells support for free software | PGPok | health care is expensive now
> 521 Pleasant Valley Rd. | +1 315 268 1925 voice | now, wait until you see
> Potsdam, NY 13676-3213 | +1 315 268 9201 FAX | what it costs when it's free.
>
