On Fri, 24 Sep 2004 14:44:13 -0400, Musser, Dale <musser@xxxxxxxxxxxxxx> wrote: > http://www.MSExchange.org/ > > OK > I must be new at this because I am lost. > I have no idea where to go next. > This is my problem. > We have a new exchange 2003 server installed and I am having the same > problem with multiple people. > Some emails come back as failures because the virtual SMTP server can > not confirm the dns examples : yahoo and aol. > I liked the days when we just sent all emails from our company to our > internet providers smtp and let figure this all out but instead we send > directly. > I can look at the queues and see failures like yahoo.com and 3 emails > trying to get out but no good. > There must be something I am missing here, I have been reading books and > doing searches on the internet and nothing. It appears that you do not have reverse DNS setup on the IP address your mail server utilizes. Go to http://www.dnsreport.com and type in your domain. ...D