Link to home
Start Free TrialLog in
Avatar of Matt Lynch
Matt Lynch

asked on

Access OWA outside local network

I need to be able to access Outlook Web Access from anywhere on the internet.  It works just fine anywhere in my local network, but what do I need to do or open to access it from home or where ever.  I am using Windows Server 2000.
Avatar of JMMI
JMMI

You need to open at least the HTTPS port 443 in your firewall and make sure it is NATed to the OWA server.  You will also need to setup a host name (Type A record) on the external DNS, pointing to your OWA server.  Something like "owa" or "webmail", then you can access it by typing https://owa.mydomainname.com.

Optionally, you could also open port 80 and configure a redirect to 443.
perhaps you already have that, but to use SSL (HTTPS) you do need a certificate, either internal, from your own CA, or purchased from a trusted root authority.

Otherwise, you can only access OWA over port 80, which is insecure and NOT recommended.
If you are only using it at home (not for public access), you may install the CA service to issue your own certificates. I agree with JMMI, SSL is a must.  Make sure that all password strong enough to avoid brute force attack. In the IIS security pannel, specify the allowed IP address for incoming connection.  And finally disable HTTP mail protocol in Active directory for users who doesnt need OWA.

ASKER CERTIFIED SOLUTION
Avatar of nickhills
nickhills

Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial