For what you're talking about, a workstation class (heck a laptop for many
implementations would do it) is likely able to do what you need and provides
far less risk than movnig an Exchange server.  

Either way, good luck,

Al 

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Dan DeStefano
Sent: Wednesday, March 02, 2005 8:55 AM
To: [email protected]
Subject: RE: [ActiveDir] Exchange Routing

I would like to install an smtp server in the colo, but we do not have any
spare servers and the other servers at the colo are mission-critical, so we
really don't want to mess with them.

 

I thank everyone for all the help,

 

Dan

 

 

________________________________

From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED]
Sent: Wednesday, March 02, 2005 12:40 AM
To: [email protected]
Subject: RE: [ActiveDir] Exchange Routing

 

OK, so if you have a GC/DC in the same location, then you are good to go.
Just ensure that the Exchange server is using this GC/DC for its operations.
Bring down your TTL beforehand. Also do the MX switch maybe 2 days before
the power outage to verify the colo Exchange is happy and that it is indeed
receiving and routing.

 

If I were you, though, I'd take the easy way out and do what has been
suggested several times here - let a plain vanilla SMTP server do the
storing for you during this outage.

 

Deji

 

________________________________

From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Dan DeStefano
Sent: Tuesday, March 01, 2005 3:03 PM
To: [email protected]
Subject: RE: [ActiveDir] Exchange Routing

 

The colo site has a DC that is a GC. And once we move the mail server to the
colo, we will re-register its DNS records and clear internal DNS server
caches. This will be done 3-days in advance, so hopefully all client
resolver caches should have timed out by then, right? But anyway, all we are
concerned with is the server's ability to receive mail from the outside,
since most of our workstations are located in the building that will have
the power outage.

 

Dan

 

________________________________

From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Mulnick, Al
Sent: Tuesday, March 01, 2005 5:50 PM
To: [email protected]
Subject: RE: [ActiveDir] Exchange Routing

 

Yes and no.  The problem is moving an Exchange server along with the
supporting requirements such as DC/GC/DNS/(AD in general).  Outside of that,
it would probably work with those gotchas and the DNS TTL issues to contend
with.

 

It's just that it's simpler to prop up a simple MTA that will just queue the
mail until your Exchange servers come back online to take delivery. W2K
server would work just fine (note: make the timeout of delivery longer than
the default to account for your outage).

 

Al

 

________________________________

From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Dan DeStefano
Sent: Tuesday, March 01, 2005 4:54 PM
To: [email protected]
Subject: RE: [ActiveDir] Exchange Routing

The thing is that the server we are planning to move is currently idle, for
all intents and purposes, but Exchange is installed and working on it. Plus,
the server uses a private IP and has a NAT mapping to a public IP. So
shouldn't we just have to change the NAT mapping and add the MX record to
our public zone file; then, for internal, just re-register the DNS records
with the new IP?

 

I did not mention this in my previous message, but we are not concerned with
users being able to access their e-mail during this outage, we would just
like to make sure the mail sent during this time period is eventually
delivered.

To deliver these few requirements, will the plan work?

 

Also, we do not have any W2k3 servers.

 

 

Dan

 

 

________________________________

From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Michael B. Smith
Sent: Tuesday, March 01, 2005 3:38 PM
To: [email protected]
Subject: RE: [ActiveDir] Exchange Routing

 

Is cutting off your arm a way to get rid of a hangnail?

 

Sure, but it's overmuch.

 

Doing what you want, properly, is pretty involved - you've gotta get DNS,
GC, AD, Exchange, etc. all happy at the remote location - not just SMTP.

 

Just stick a standalone W2K3 server with the SMTP service installed at the
remote location if you REALLY want to put a server somewhere else. 

 

Or pay some service provider to do your secondary MX/store-and-forward for
you. Worst case, you're looking at less than $100 for a month's service.

 

________________________________

From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Dan DeStefano
Sent: Tuesday, March 01, 2005 3:26 PM
To: [email protected]
Subject: RE: [ActiveDir] Exchange Routing

I am not sure about that with our ISP. But will the procedures I suggested
work?

 

 

Dan

 

 

________________________________

From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Michael B. Smith
Sent: Tuesday, March 01, 2005 3:00 PM
To: [email protected]
Subject: RE: [ActiveDir] Exchange Routing

 

You don't need to move an Exchange server you just need to have some company
act as a secondary MX (store and forward mail services) for the domain of
interest.

 

PROBABLY your bandwidth provider will do this for you, for free.

 

________________________________

From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Dan DeStefano
Sent: Tuesday, March 01, 2005 2:27 PM
To: [email protected]
Subject: [ActiveDir] Exchange Routing

I have a question about Exchange routing.

 

We have 2 Exchange 2000 servers at our main site, one that holds all the
mailboxes and the other currently holds just a few mailboxes that aren't
being used, but the server is up and working. Both servers are in the same
routing and administrative groups. Both servers are in the data center of
our main site.

 

The problem is that this weekend, the power will be turned off in our
building and our network will be unavailable as will user's mailboxes. We
currently have no offsite data replication or Exchange DR strategy (though
it's not for lack of trying/nagging by our department to upper management).

 

So, as a temporary solution, our current plan is to move the second Ex
server to one of our colo sites and add a lower-priority MX record for it to
our public DNS zone. The thinking is that messages sent to our domain will
be sent to the second server at the colo, and this server will cache all the
messages until the main server is back up and mail can be delivered to it.
And, since the mail was received, no senders should receive NDRs. Then, on
Monday, when the power is back, all messages will be delivered to the main
server.

 

Is this plan going to work? If so, how long will the messages be cached by
the second server? How many messages will it cache (until it fills the
drive)? Are these options configurable? Does anyone see any gotchas or
things to consider?

 

Thank you very much. I am a novice when it comes to Exchange, but trying to
change that by studying my MSPress 70-284 text. Besides, I usually do not
like to make any major changes to our mail/AD infrastructure without
consulting you guys first.

 

_________________________

 

Daniel DeStefano

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