Outgoing mail flow   

Situation:

Mulitple AD sites, in every site 2 or more hubs, no edge....when user in one 
site sends mail to internet user, does that goes directly from mailbox to hub 
server in that AD site and then HUB sends that mail directly through it's 
default gateway or through hub server where connectors are defined?
Or defined connectors doesn't count on exact server, but for all hub 
servers? and every hub sends internet mail directly through default gateway?

Tnx!

date: Tue, 19 Feb 2008 06:46:02 -0800   author:   Lehr

Re: Outgoing mail flow   

On Tue, 19 Feb 2008 06:46:02 -0800, Lehr
 wrote:

>Situation:
>
>Mulitple AD sites, in every site 2 or more hubs, no edge....when user in one 
>site sends mail to internet user, does that goes directly from mailbox to hub 
>server in that AD site and then HUB sends that mail directly through it's 
>default gateway or through hub server where connectors are defined?
>Or defined connectors doesn't count on exact server, but for all hub 
>servers? and every hub sends internet mail directly through default gateway?
>
>Tnx!

There were loads of question marks but not many questions I could pick
up. Let me see if I can answer all of them for you:

The MB in site A will send to the HT in site A. The HT in site A will
send to the HT in site B. The MB in site A will never send to the HT
(or even MB) in site B.

The default gateway has got nothing to do with anything unlless you've
only got one gateway IP address and in that case it's still got
nothing to do with it because the server can only route to one
address. If you have multiple gateways then the server will work out
the route to use because you'll have told it to route traffic for
subnet x through address y and everything else goes through the
default, or address z.

date: Tue, 19 Feb 2008 14:33:14 -0500   author:   Mark Arnold [MVP]

Re: Outgoing mail flow   

"Mark Arnold [MVP]" wrote:

> On Tue, 19 Feb 2008 06:46:02 -0800, Lehr
>  wrote:
> 
> >Situation:
> >
> >Mulitple AD sites, in every site 2 or more hubs, no edge....when user in one 
> >site sends mail to internet user, does that goes directly from mailbox to hub 
> >server in that AD site and then HUB sends that mail directly through it's 
> >default gateway or through hub server where connectors are defined?
> >Or defined connectors doesn't count on exact server, but for all hub 
> >servers? and every hub sends internet mail directly through default gateway?
> >
> >Tnx!
> 
> There were loads of question marks but not many questions I could pick
> up. Let me see if I can answer all of them for you:
> 
> The MB in site A will send to the HT in site A. The HT in site A will
> send to the HT in site B. The MB in site A will never send to the HT
> (or even MB) in site B.
> 
> The default gateway has got nothing to do with anything unlless you've
> only got one gateway IP address and in that case it's still got
> nothing to do with it because the server can only route to one
> address. If you have multiple gateways then the server will work out
> the route to use because you'll have told it to route traffic for
> subnet x through address y and everything else goes through the
> default, or address z.

Ok, routing beetwen AD sites is clear to me...but main concern is when mail 
goes to internet mail address...
For example, no edhe transport servers...when user in AD site A sends mail 
to internet mail address...does the HUB in that AD site A sends that mail 
directly to the internet ?

date: Wed, 20 Feb 2008 00:44:00 -0800   author:   Lehr

Re: Outgoing mail flow   

>Ok, routing beetwen AD sites is clear to me...but main concern is when mail 
>goes to internet mail address...
>For example, no edhe transport servers...when user in AD site A sends mail 
>to internet mail address...does the HUB in that AD site A sends that mail 
>directly to the internet ?
>

Look on the send connector. There will be nominated HT servers that do
the sending. If you're in an AD site that is not listed in the send
connector the sending HT will get it to a server (using the AD sites
architecture to route the message) that is listed on the send
connector.

You're asking a lot of questions here. Are you doing the design or has
someone let you down with one and you're trying to pick up the
wreckage?

date: Wed, 20 Feb 2008 15:19:06 -0500   author:   Mark Arnold [MVP]

Re: Outgoing mail flow   

"Mark Arnold [MVP]" wrote:

> >Ok, routing beetwen AD sites is clear to me...but main concern is when mail 
> >goes to internet mail address...
> >For example, no edhe transport servers...when user in AD site A sends mail 
> >to internet mail address...does the HUB in that AD site A sends that mail 
> >directly to the internet ?
> >
> 
> Look on the send connector. There will be nominated HT servers that do
> the sending. If you're in an AD site that is not listed in the send
> connector the sending HT will get it to a server (using the AD sites
> architecture to route the message) that is listed on the send
> connector.
> 
> You're asking a lot of questions here. Are you doing the design or has
> someone let you down with one and you're trying to pick up the
> wreckage?


Tnx Mark, I will check that.
Exchange '07 is new for me, and we are planing migration from 2k3 to 2k7. 
I'm bulding test desing to so see how things work. All those questions that I 
ask are not covered in MOCs, and it seems that they should be 'cos those are 
really importatn ones...you agree?:)

tnx again :)

date: Wed, 20 Feb 2008 23:13:00 -0800   author:   Lehr