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How do I configure OWA in Exchange 2010

Dear experts,

We just install exchange 2010 in our organization and we can't figure out how to make OWA available over the web. I need to make webmail.ourdomain.com be accessible from the web.

For your time and help many thanks, M
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marceloNYC
Asked:
marceloNYC
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1 Solution
 
Exchange_GeekCommented:
You'd need to set the External URL for OWA Virtual Directory using the cmdlet

Set-OWAVirtualDirectory -ExternalURL :webmail.domain.com

Next, you'll need to purchase SAN Cert (this is for additional security/encryption) and have the SAN configured to include webmail.domain.com / autodiscover.domain.com / CAS NETBIOS / CAS FQDN

Next, your External DNS needs to have publish A record for webmail.domain.com to point to your external firewall, so all the internet traffic would point to your firewall and there by have firewall turn traffic towards your CAS box.

Simple isn't it :)

Regards,
Exchange_Geek
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Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
You need to install SAN certficiates for this in Exchange and be able tow ork with external OWA.

- Rancy
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Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
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marceloNYCAuthor Commented:
Do I need to buy the certificate can I just make it work with a local certificate?
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Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
You would need to buy a certificate.

- Rancy
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Exchange_GeekCommented:
You could surely, users would get the cert errors - you know where you get those errors where it would state - the website isn't authentic etc etc.

However, webmail would work easily w/o certs.

Regards,
Exchange_Geek
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marceloNYCAuthor Commented:
I just need it to work for now without a SAN certificate. If I get the iphones to work with the new server. I am all set.
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Exchange_GeekCommented:
You'd need to set the External URL for OWA Virtual Directory using the cmdlet

Set-OWAVirtualDirectory -ExternalURL :webmail.domain.com

Next, you'll need to publish self-signed cert for webmail.domain.com / autodiscover.domain.com / CAS NETBIOS / CAS FQDN and assign it to your CAS Server.

Next, your External DNS needs to have publish A record for webmail.domain.com to point to your external firewall, so all the internet traffic would point to your firewall and there by have firewall turn traffic towards your CAS box.

- you've read the above, I've made change to self-signed cert instead of SAN.

Here is all about certs and its installation and assignment on Exchange box

http://www.emailsecuritymatters.com/site/blog/best-practices/how-to-create-self-signed-ssl-certificate-exchange-2003-2007-2010-windows/

http://marckean.wordpress.com/2009/10/09/install-self-signed-exchange-2010-ssl-certificate/

All the best.

Regards,
Exchange_Geek
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marceloNYCAuthor Commented:
OWA i remember used to be much simpler than this.... sight....
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Exchange_GeekCommented:
LOL
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marceloNYCAuthor Commented:
I think that I am having an authentication issue in IIS.
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Exchange_GeekCommented:
explain.
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marceloNYCAuthor Commented:
It is working now but not on the iphones from a browser is working fine.
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Exchange_GeekCommented:
whats the error you get?

Regards,
Exchange_Geek
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marceloNYCAuthor Commented:
FRom the iphone that cannot get mail the connection to the server fail.
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Exchange_GeekCommented:
Try exporting the cert from the server and import it on iphone.
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marceloNYCAuthor Commented:
Thank you so much for your help guys!!! Have a great weekend!!!
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