Exchange 2010 - Setting our existing setup to recieve emails from a second domain

We have purchased a company and need their emails to come into our existing exchange server.
I'm fairly competent at maintaining the existing setup but don't know what I need to do to enable the new email domain.

1.  Its an Exchange 2010 server
2.  We are currently receiving emails from www.company1.co.uk
3.  I want to also receive emails from www.company2.co.uk
3.  I know i'll need to change the MX records at the domain side to point to the external IP of my server

What is the best way to configure the existing Exchange server for the new www.company2.co.uk domain emails.

All help is gratefully received.

Thanks in advance folks!

Steve Walker
LVL 5
FireflyITAsked:
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Stelian StanNetwork AdministratorCommented:
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Hardik DesaiIT Architect and TrainerCommented:
If you want to receive mails for  www.company2.co.uk  and then forward to company2 you will need to create partner / relay connector in your messaging server.

If you just want to receive and do not need to forward you will need to add company2.co.uk as accepted domain in your Exchange server and add that as an additional email address on the mailboxes.
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systechadminConsultantCommented:
you just need to make below changes. Follow the steps:

1.  First the add the domain in exchange as accepted domains.
2. If you want the to update email address policy you can do it to add the comapny2 domain. it will automatically the emails address to the users.
3. Change the MX records to point to company1

Are you using the any cloud base antispam solution like symantec messaging gateyway?
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Kash2nd Line EngineerCommented:
pretty simple.

1. In EMC, add second domain as Authoritative Domain
2. Point the MX record (in DNS Panel) to your email server. This should start sending emails to your server.
3. Setup Transport rules, email addresses according.
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FireflyITAuthor Commented:
Thanks!  Everyone has said the same Stelian was first so kudos to you sir!

Kash ... I've not set any transport rules, should I?  I've not got any setup for any other existing email accounts.

Steve
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Kash2nd Line EngineerCommented:
If you have not then I wouldn't worry about it. You should be good to go.
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Zacharia KurianAdministrator- Data Center & NetworkCommented:
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FireflyITAuthor Commented:
thanks folk
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