Thursday, 14 June 2012

Configuring Exchange 2003 - Part 2

After completing Part 1, I next decided to deploy a second Exchange 2003 server which would be used as a Front-End.  I followed the deployment steps from the previous posts, with the exception of dropping the 2GB memory down to 1GB, not assigning a 50GB partition from the SAS disks, but assigning a 10GB drive from the SSD's to be used for the Mail Queue.
I deployed this server as RSMSGE11FE1.
Next, I went into Global Settings, on the Defaults tab I upped the maximum inbound and outbound message size from 10MB to 20MB, and dropped the max recipients from 5000 to 50.
Then, on the Recipient Filtering tab I enabled filtering of recipients who are not in the directory.
I then went into properties of the Front-End server, and selected the option designating it as a Front-End server.
Then, on the RPC-HTTP tab I set the Front-End server as a RPC-HTTP Front-End server.

Next I wanted to create a mailbox, so I fired up ADUC, and loaded the Exchange task wizard against the msgeek user I created earlier.
I chose to create a mailbox.
I placed it on SG01 DB1.
Creation completed successfully.
Whilst in ADUC, I also created a Postmaster mailbox, placed it on SG02 DB1, and disabled the associated Active Directory account.
Next, I went back into ESM, and into properties for the Default SMTP VS on the Front-End server.
On the Access tab, I went into Authentication, then Users, and granted Authenticated Users Relay Permission.
Then, on the messages tab, I set the same limits I configured in global settings, and moved the queue and badmail directories to the Q drive on the SSD storage I created when provisioning the server.
Next, I went onto the Delivery tab and clicked advanced.  Here I modified the Fully-Qualified domain name to be something a little tidier.  I also added this hostname to internal DNS.  I didn't add this to public DNS which I won't be touching (meaning no MX records and no inbound mail) until much later in the lab build when I start looking at the edge role.
I then went into the first routing group, and chose to create a new SMTP connector.  I named the connector Internet Email and configured it to route through the relay I had been provided by Redstation. I also added the SMTP VS on the Front-End server as a local bridgehead.
On the email address space tab I added a new wildcard SMTP address space with a priority of 10.
Next I wanted to check that the SMTP VS was working correctly, initially I wanted to ensure there were three types of distinct behavior that were working as desired.
  • Emails to external domains should be rejected when there is no SMTP authentication.
  • Emails to should be rejected if the address before @ does not exist.
  • Emails to should be accepted if the address before @ exists.
This behaviour can be tested via a single telnet session to the SMTP VS by use of three different RCPT TO: commands. One to an external domain, One to an invalid address and one to a valid address  As you can see from the screen shot below, all three tests came back correctly.
Next I tested outbound mail flow when SMTP authentication is used.
The test message was recieved by the external mail system correctly.
I then added to internal DNS pointing to the internal IP of the Front-End server.
I then navigated to the OWA page and verified I could access OWA and it was working as expected.
It was all looking good as expected.  There are a few minor configuration changes I still want to make, but I'll be visiting some other components in the deployment next.

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