Expanded from is not what I am expecting

Hello,

I have two servers that I am using right now.

"web" server has its sendmail version 8.14.1 running. It has its dns
pointing to the "dns" server. The hostname of "web" is
web.something.com. The hostname of "dns" is dns.something.com.

When I am using mutt to send an email from "web", I am getting the
error of "Error sending message, child exited 67 (User unknown.)".
From what I can see, the email is coming back with this error message:
The following addresses had permanent fatal errors:
user@xxxxxxxxxxxxx
(reason: 550 5.1.1 <user@xxxxxxxxxxxxxxxxx>... User unknown)
(expanded from: user@xxxxxxxxxxxxx)

I am trying to figure out what and why the email address is being
expanded from user@xxxxxxxxxxxxx to user@xxxxxxxxxxxxxxxxxx

Can anyone give me a starting place...

I will be glad to give any more info that is needed!
.

Relevant Pages

  • Re: Domain KPMG.AN - Sendmail 8.13.5 - Resolved
    ... The issue was not with my servers receiveing the Emails (since it was ... I was able to better diagnose the problems with the sendmail Queue by ... It indicates a 'soft' DNS ...
    (comp.mail.sendmail)
  • Re: Help SMPT Errors
    ... FAIL Reverse DNS entries for MX records ERROR: The IP of one or more of your ... it may mean that your DNS servers did not respond fast enough). ... INFO NS records at parent servers Your NS records at the parent servers ... PASS Parent nameservers have your nameservers listed OK. ...
    (microsoft.public.exchange.admin)
  • Re: Windows 2000 logon process
    ... Paul Williams ... when clients are accessing the GPO stored in SYSVOL during logon. ... PW>> Sound's like - that's a combination of DNS and Dfs client pointing ... Global Catalogue servers? ...
    (microsoft.public.win2000.active_directory)
  • Re: Replication issues
    ... I wanted to say Zone Transfers not Zone Forwarding. ... on 2 servers out of 4 DNS servers. ... DNS and 2003 DNS and how to set up Conditional Forwarding. ...
    (microsoft.public.windows.server.active_directory)
  • Re: Howto refresh IIS 6 Application pool identity credential info
    ... You already have 80% of the work setup (DNS Aliases and HostHeaders) on the ... domain accounts (one for each layer) should be sufficient. ... The Application Servers are load balanced clustered, ... as the account name and SPN alias is correctly defined on both nodes. ...
    (microsoft.public.inetserver.iis.security)