Setting the Masquerade Domain (IIS 6.0)

The masquerade domain replaces any local domain name used in any Mail From lines in the protocol. The replacement occurs on the first hop only.


You must be a member of the Administrators group on the local computer to perform the following procedure or procedures. As a security best practice, log on to your computer by using an account that is not in the Administrators group, and then use the runas command to run IIS Manager as an administrator. At a command prompt, type runas /User:Administrative_AccountName "mmc %systemroot%\system32\inetsrv\iis.msc".


To set the masquerade domain


In IIS Manager, right-click the SMTP virtual server, and then click Properties.


Click the Delivery tab, and click Advanced.


In the Masquerade domain box, type a domain name that you want to appear in message headers, instead of the actual name of the domain.


All replies to such messages will be routed through the SMTP virtual server that uses the masquerade domain.

Related Information

For information on enabling reverse DNS lookup, see Enabling Reverse DNS Lookup.

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