Symptoms:
After Installing new Exchange 2007 server with Hub Transport, you realized it is not Anti-Spam Enabled. Many information and Best Practice only refer to Edge Transport. What if you don't have any budged to created Edge server or you only run small organization but must have Anti-Spam mechanism?
Solution:
Actually the Anti-Spam features can be installed directly into the Hub Transport module on the Exchange Server using Power Shell.
1. Run the Install-AntispamAgents.ps1 script. This script is located in the %system drive%/Program Files/Microsoft/Exchange Server/Scripts
2. Restart the Microsoft Exchange Transport service:
Restart-Service MSExchangeTransport
3. Specify the internal SMTP servers by using the InternalSMTPServers parameter on the Set-TransportConfig cmdlet
set-transportconfig –internalsmtpserver x.x.x.x
4. Check 'Server Configuration\Hub Transport', notice the 'Anti-spam Updates Enabled' set to 'True'. If it's not you need to run:
Enable-AntispamUpdates -SpamSignatureUpdatesEnabled $true -UpdateMode Automatic
5. Add quarantine mailbox for administrator to check, deleted, and send again (Approved) quarantined email
6. Do required configuration (SCL and custom configuration) for Anti-Spam features:
- Content Filtering
- IP Allow List
- IP Allow List Providers
- IP Block List
- IP Block List Providers
- Recipient Filtering
- Sender Filtering
- Sender ID
- Sender Reputation
More info: http://technet.microsoft.com/en-us/library/bb201691.aspx
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