Well, you should have anonymous access in order for you to send and receive emails unless you want to setup user names and passwords for that. Enable Anonymous Access and you should be ok. -----Original Message----- From: Joe Gessner [mailto:joe@xxxxxxxxxxxxxx] Sent: Sunday, June 08, 2003 12:43 PM To: [ExchangeList] Subject: [exchangelist] RE: Exchange Server 2000 check your PTR records for your domain mail.tmc.com.sg You should be able to do a reverse lookup - if not check your DNS. Make sure your not on any blacklist, since you where a open relay. -----Original Message----- From: MVL Hanumantha Rao [mailto:hanumantharao@xxxxxxxxxx] Sent: Sunday, June 08, 2003 3:10 AM To: [ExchangeList] Subject: [exchangelist] Exchange Server 2000 Dear Sir, I configured my Exchange Server 2000 to stop the relay. 'Anonymous Access' checkbox is enabled. Even though, open relay is stopped I am getting Non Delivery Reports and Bad emails 200+ a day. Please suggest. Thanking you in advance. Regards, Rao System Administrator.