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Within this section, add RelayIpList=””, specifying which IP addresses are permitted to relay emails through this server. This added security step helps prevent unauthorized use of your mail server.
After setting this value you can change it to what you need it to be. (i.e. the value doesn't need to be 'null' for the fix to work, just so long as the variable is present in the file). The above has been tested on a few new installs of Windows Server 2022, and has worked for us every time.
We found that the following steps worked, and we can predictably edit the settings in the IIS 6.0 Manager without errors (and without crashing when applying settings): Add RelayIpList="" as an attribute. (Settings are alphabetical.) Save the MetaBase file. Start the IISAdmin service. Start the SMTPSVC service.
We found that doing the following worked, and can now edit the settings in the II6 Manager without errors (and without crashing when applying settings) every time:
The following is sample XML that configures state and country picklists for the United States and Canada for use in an organization. It also makes the country of Greenland available only in the API.
As long as the settings “RelayIpList” is present in the file you’ll be fine. Technical blog covering Citrix, Microsoft, PowerShell, and enterprise IT solutions.
The section was missing RelayForAuth and RelayIpList, which I copied from another server and that fixed it!! Note: you have to stop the IIS Manager service in order to release MetaBase.xml or you won't be able to save.
The RelayIpList property is an octet string containing a list of IPs allowed or denied for relay listed in the Relay Restrictions dialog box.
After setting this value you can change it to what you need it to be. (i.e. the value doesn't need to be 'null' for the fix to work, just so long as the variable is present in the file). The above has been tested on a few new installs of Windows Server 2022, and has worked for us every time.
You can now open the Internet Information Services (IIS) 6.0 Manager (InetMgr6.exe) and work like normal. The setting above relates to the Access Tab > Relay Restrictions section, but doesn't set anything in it (i.e. "all except the below list" with a blank list).