Re: HELP!! Made one small change and...

> The company that I work for full time is Security Central.
> My own business, part time, is Tar Heel Technical Solutions.
> When I would email people, the by line was: dchilders@tarheeltech. It
> needed
> to be:
> dchilders@xxxxxxxxxxxxxxxxxxxxx
You should be able to do it, using the same technique I use for my outside
mail host. We use a commercial hosting service that also runs the DNS
servers for our commercial domain name. The SBS server is behind a router at
a fixed IP address. We added an A record to the DNS zone file for the SBS
server. Say the main domain is foo.com. An A record points to xyz.foo.com
which is the SBS's public address. Our Exchange server is set up to mail out
through a smarthost at our ISP. We added a SPF record in the zone file to
avoid getting outgoing email blocked as it comes from "foreign" addresses.
We use the Exchange option to send out through the smarthost any email sent
to an address that cannot be resolved locally, and use the POP3 connector to
pull from the hosted mail server only the messages for those mailboxes that
we want to handle through Exchange. So, you would need to:
- specify security-central.com as the domain in the Internet Connection
wizard.
- have the admin of the DNS for security-central create an A record that
points to your SBS public address, maybe with a name like
tarheeltech.security-central.com so everyone will remember what it is for.
- I recommend that you have the admin of the DNS for security-central add a
SPF record (using the wizard at http://spf.pobox.com/) that includes their
address as well as your SBS (and/or smarthost, if you use one) address, so
that mail coming from your Exchange server won't get filtered out as spam.
See http://spf.pobox.com/ for details. So, typically the SPF record would
contain something like "v=spf1 a mx ptr
a:tarheelteck.security.central.com.com include:yoursmarthost.com"
- set up the POP3 Connector to pull the email you are interested in from
the security-central email server.
- set up your Exchange server to sent out mail for any unrecognized address
in the domain, rather than trying to dispatch it internally. This is just
one checkbox somewhere in the Exchange configuration, I don't remember where
offhand.

So, in short, the SBS server is "sponging off" the domain that is set up
somewhere else, with no ill effects. You should be able to do the same. Of
course, this requires the cooperation of the administrator who controls the
DNS zone file for the other domain. It also requires that the main email
server for the domain exposes a POP3 connection that you can use to pull
your mail, and that account(s) be set up for you on that server to receive
the mail in the first place.

One disadvantage is the use of the POP3 Connector because of its 15-minute
delay and a reported serious bug if it has not finished downloading mail by
the time the next 15 minute call comes. But 99.99% of the time it works just
fine and our users don't mind the delay in incoming mail.

C_O


.

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