Relay Restrictions and SMTP service, IISOLE.dll reference

This is one of *those* posts I refer to from time to time.  There have been a few posts on regarding how to manage relay restrictions in SMTP service.   I’ve used the IISOLE.dll against an IIS 6 server with no issues.  I’ve not tested on IIS 7, so mileage may vary.  Make sure to install the IIS 6.0 compat modules and test on a non-production box.   If nothing else, download a trial version and create an instance using vmware, hyper-V or Virtual PC.

On a side note for SMTP questions.   I’d recommend checking the SMTP / NNTP newsgroup host by Microsoft.   This is an active and targeted source of information for the SMTP service.

Hope this helps.