add external domains to exchange 2010

hi all, never setup exchange from scratch before

how do i get external emails tobe received?

we have a 2003 box that also needs to temporarily get these emails too whilst accounts are being transfrered, this possible or would it be easier to just switch them over all on one day?

thanks
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awilderbeastAsked:
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Glen KnightCommented:
For exchange 2010 you will need to configure an accepted domain.

If the 2010 and 2003 are not part of the same Exchange Oraganisation then to have them both receive the mail you will need to configre a shared SMTP address space.

Both of these are covered in my article here: http://www.experts-exchange.com/articles/Software/Server_Software/Email_Servers/Exchange/Configure-Exchange-2007-or-2010-to-relay-email-for-an-additional-domain.html

if you find the article useful please vote for it :)
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awilderbeastAuthor Commented:
so i configure the exhange 2010 server to recieve all emails and the users that it doesnt know about get sent to the 2003 box?

what if ive created users for all the 2003 users on the 2010 box (which i have)
it will send them to the 2010 mailboxes?

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Glen KnightCommented:
I you have already created all the users then there is no way to do it without removing the ones that are not in use.
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awilderbeastAuthor Commented:
ok so my best solution would be to move all the mailboxes then setup the 2010 server to receive the mails and turn off the 2003 box

ive used the exchange shell to move a test account from the 2003 box to 2010 and thats going ok so im prepared for that

the only thing i don tknow how to do is make the 2010 server recieve emails for my two domains
all ive done is added the domains to the accepted domains in organisation config > hub transport > accepted domains

whats the next step?

thanks
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Glen KnightCommented:
That's all you need to do.  You may also want to create an email address policy (detailed in my article)

You may also if you haven't already need to set the receive connector to allow anonymous connections.  To do this under Server Configuration > Hub Transport right click on the receive connector calked Default servername select properties and then on the last tab enable annonymous users.

Once you have done that update your router/firewall so that port 25 is forwarding to the internal IPaddress of your 2010 server.
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awilderbeastAuthor Commented:
ok i created some polices like you i added the company field, could i use user templates to auto define (when i create new users) which company they belong too?

allowing anonymous that just means users outside the domain can send us emails?

i have a default policy and a client policy in there, that client polivy something i would of set up when i was messing around?

quick question off topic, what type of ssl cert do i need for OWA?

thanks alot
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Glen KnightCommented:
>> ok i created some polices like you i added the company field, could i use user templates to auto define (when i create new users) which company they belong too?

Unfortunately not, you need to fill this in yourself.

>>allowing anonymous that just means users outside the domain can send us emails?

Correct, if you didn't have this then you would need to provide a username and password to everyone sending you emails.

>>i have a default policy and a client policy in there, that client polivy something i would of set up when i was messing around?

Are you talking about the receive connectors? If so them these are created by default the client on will be using port 587 the only one you need to worry about is the default one.

>> quick question off topic, what type of ssl cert do i need for OWA?

I have details of SSL certificates listed in my profile.  You will need a SAN/UCC certificate with the following names in:

owa.domainname.com (your Outlook Web Access URL)
autodiscover.domainname.com (where domainname.com is the part after the @ in your email address)
servername.domainname.local ( the internal fully qualified domain name of your server)
SERVERNAME (the NETBIOS name of your server)
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awilderbeastAuthor Commented:
thanks :)

can i have my owa url the same as my MX record?

also do i create the cert request on my tmg 2010 server or the 2010 exchange server?

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awilderbeastAuthor Commented:
oh and the servername is that the name of my operations master, my exchange server or my tmg server

thanks
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Glen KnightCommented:
You will need to install the certificate on the Exchange server and the TMG server but the OWA URL should be the same regardless.

The servername is for internal use so only the exchange servername is needed.

you will need to request the certificate using the wizard in the Exchange 2010 console.

The OWA URL can be whatever you want it to be so if you want to use the same A record your MX record points to then that's fine.
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awilderbeastAuthor Commented:
i did a mcitp ea course a few weeks ago and we breifly covered creating a certificate

i create a cetificate request on one of the machines and then copy and paste that in to a cert authority yes?

do i need to install certificate services on one of the servers or are the required roles already installed on either the exchagne 2010 server or the TMG?
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Glen KnightCommented:
You don't need a certificate authority.
You create the request using the wizard I'm the Exchange management console and then paste the CSR in to the website to get your certificate (there is a link on my profile)
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