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| Hi Sandy,
Thank you very much for your help!
I forwarded your answer to our tecnician who works with the servers. Your
suggestions were of great value.
I changed the FQDN at smart host setting from the local computer name to the
FQDN of the mail server. Even though the mail server is on another machine,
this seem to work fine. I thought you had to set the FQDN of the machine with
the Virtual SMTP Server you send mail from, but at least in this case it
works.
Regarding the authentication error, do you know if it's possible to send
user name and password to the mail server by using the Outbound Security
setting in Virtual SMTP Server? I made a try, but the e-mails did then stayed
in the queue folder. So I changed back to anonymous.
With kind regards
Lage
"Sanford Whiteman" wrote:
>
> That points to a DNS issue. To troubleshoot SMTP, you have to understand
> DNS, as the two are tightly linked on the public net.
>
> What is the IP address(es) of the DNS servers used by your mail server
> (Control Panel-Network-TCP/IP). Are they both accessible from the
> server? Can they both resolve MX records for remote domains? Run
> 'nslookup -q=mx google.com <DNS server IP>' for both servers from a
> command prompt and post results.
>
> Also, 'global' is not an acceptable FQDN: you want to use the true,
> publicly resolvable hostname + domain of the machine. However, while some
> servers will block or suspect your mail because of this error, it is not
> responsible for your widespread delivery problems.
>
> --Sandy
>
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