You don't. However I'm sure there are a number of 3rd party gateway products which can be configured to do this. www.mail-resources.com has a list of potential candidates. That'll block a fair amount of potentially legitimate mail as well.
> -----Original Message----- > From: Jason Coleman [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, September 17, 2002 11:10 AM > To: Exchange Discussions > Subject: Forward/ Reverse Domain Lookup - Blocking Mail > > > Anyone here know how to configure Exchange to block email > that originates from a domain that fails a forward and > reverse DNS lookup? Any help would be appreciate. Thanks all. > > Config: > > Exchange Server 5.5 SP4 > Winnt 4.0 SP6a _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED]
