> -----Original Message----- > From: Phil Steele [mailto:[EMAIL PROTECTED]] > Sent: 28 June 2002 09:30 > To: Exchange Discussions > Subject: Outbound Failures > > > I am running Exchange 5.5 SP4 on a W2K server SP1. > Since installing SP4, it appears (could be coincidence)that I > now regularly get notification of Outbound Mail Failures. The > message states that the mail could not be sent because the > 'host is unknown'. I am assuming that if I had any problems > with DNS then no mail would get delivered. The Internet > connection is working perfectly. Any help would be really appreciated
Silly question perhaps but lets start with the simple stuff: Have you sat down at the server and tried pinging or traceroute to server addresses mentioned as problematic in your NDRs? Have you tried contacting any that you can't reach from your server console from somewhere else? Is it sending to the same two or three servers that generates NDRs or is it totally random? -- Robert Moir, MSMVP Senior IT Systems Engineer, Luton Sixth Form College "Our doubts are traitors" -William Shakespeare, Measure for Measure -- This e-mail is intended for the addressee shown. It contains information that is confidential and protected from disclosure. Any review, dissemination or use of this transmission or its contents by persons or unauthorized employees of the intended organisations is strictly prohibited. The contents of this email do not necessarily represent the views or policies of Luton Sixth Form College, its employees or students. _________________________________________________________________ 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]
