Exchange 2010 remote domain?

Hi,

we have bought a new company and I need to know if I can get setup their/our exchange to route emails to each other? is this something easily done in exchange 2010 in a DAG environment?

Thanks
badabing1Asked:
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systechadminConsultantCommented:
do the new company having their own exchange servers?
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Chad FranksSenior System EngineerCommented:
Once connectivity is established between the company's infrastructures, you can then setup send/receive connectors for each of the servers on the other servers..

Do you plan on rolling the new company exchange server up into the main exchange server?
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badabing1Author Commented:
Gaurav - yes the company have their own exchange server?

Chad - so as long as the network connectivity is set between the two sites, then its a matter of creating send/receive connectors? can you elaborate on this a bit more please?

yes I do plan to migrate to main exchange server in time.

Thanks
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MAS (MVE)EE Solution GuideCommented:
Both servers in a single forest or different forest?
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SteveCommented:
Hi @badabing1,

I don't think we have enough information on the existing setup and what your aims are to be able to provide a proper response.

Could you please advise the following:
Exchange setup in your organisation (Exch version, rough idea of layout, number of servers, mail filtering/proxies etc)
Rough idea of your AD (single domain/forest, multiple domains etc)
Exchange setup in their organisation (Exch version, rough idea of layout, number of servers, mail filtering/proxies etc)
Rough idea of their AD (single domain/forest, multiple domains etc)
What you actually want (shared calendars, shared GALS, shared software costs, resilience etc)

In theory, from what we know already, both companies should be able to send and receive mail already using the standard internet/MX setup that all companies on the internet use. No changes are required unless you want something specific, like sharing the GAL or linking them together in some way.
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badabing1Author Commented:
Hi,
they are both on different forest.

we have two exchange 2010 in a DAG, and mail filtering done by symantec.

our AD is in a single forest domain.

we want to share GALS and link them together and then later merge.

cheers
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SteveCommented:
Thanks, Always good to get basics before getting too deep into it all :-)

we have bought a new company and I need to know if I can get setup their/our exchange to route emails to each other? is this something easily done in exchange 2010 in a DAG environment?
To answer your original question, that should be working already. Unless otherwise configured, the two separate systems should be able to send e-mails to each other without a problem over the public internet, just like anyone else with an e-mail server can. You may need to add exclusions to the juknmail filtering system to ensure nothing gets caught up but it should work.
If this isn't working, check the basics like MX records and open ports to check that either side isn't misconfigured in general.

The hard part is the sharing of GALs and the eventual merging of systems.

There are workarounds for GALS, eg GALsycn services like the one below:
http://social.technet.microsoft.com/wiki/contents/articles/7377.fim-2010-sharing-gals-and-freebusy-info-between-exchange-orgs.aspx

These are mostly short term though and do nothing to help you join them together.

First, decide your path:
Consider if you want to keep a domain/forest (and decide which one) and discard the other
Consider if you would rather start with a brand new forest/domain and discard both
Consider if you'd like to keep both and link them together to share a single Exchange org

This is mostly looking at the existing domains & systems to see if any one of them poses a big issue in being migrated. Also check the AD structure & health to assess if one or both are worth keeping.
Ensure you consider how the various servers/applications/clents would react to being migrated.

If you find both domains would be troublesome to discard, consider setting up trusts between them and using a single exchange organisation in one domain, with the other sharing via the domain trusts.
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badabing1Author Commented:
Thanks for your help.
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