Monday, March 30, 2009

How to configure an IP Address Blocklist in Exchange 2007

To block certain domain's or IP Addresses from sending email into your organisation, use powershell and execute the following:

Set-IPBlockListConfig -Enabled:$True
Add-IPBlockListEntry -IPAddress 123.456.0.1
Add-IPBlockListEntry -IPRange 123.456.1.1-123.456.0.255

To remove IP Addresses from being blocked execute the following in powershell:


No comments:

Post a Comment