Erick,
That line with 421 in it, is a response from the remote server (not your
IMail server). It is telling you that it is having problems getting to the
final destination's SMTP server. Not much you can do about it, except to
notify that domains postmaster of the problem.
If you cannot telnet to the host (port 25 and 110), then something is
blocking the connection (yes, it could be the firewall!) and that needs to
be fixed before mail delivery can be completed.
Daniel Donnelly
Ipswitch Technical Support
________________________________________________________
See our Knowledge Base at http://support.ipswitch.com/kb
----- Original Message -----
From: "Erick Griffin" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, June 09, 2000 5:18 PM
Subject: [IMail Forum] What would you do if you saw this error.
> We host the domains for a number of people. We also host the email for a
> number of them. Some of our customers like to host their own email with on
> site servers. I tried to set up one of out clients to get mail at an on
> site email server like I have done hundreds of times in the past and for
> some reason I have had the worst time getting it to connect.Anyway my
> question to everyone is what can I do if I can telnet to a server ports 25
> and 110 but, when I look at the sys log I see the following error when I
> send a test email:
>
> 06:09 10:46 SMTP-(0000012B) Trying somedomain.com
> ---I changed the domain info of course.
> 06:09 10:46 SMTP-(0000012B) Connect somedomain.com [10.10.10.10:25] (1)
> 06:09 10:47 SMTP-(0000012B) 421 some.dns.com Sorry, unable to contact
> destination SMTP daemon.
> 06:09 10:47 SMTP-(0000012B) SMTP_DELIV_FAILED
> 06:09 10:47 SMTP-(0000012B) >QUIT
>
> My question is what can I do after this? Could it be possible to telnet to
> ports 25 and 110 only to have the firewall block the mail server from
> sending the actual mail? I did a tracert and it worked once. Then suddenly
I
> could not telnet or tracert to the mail server. The client is using Novell
> Groupwise and we use Imail on NT.
>
> What would some of you have done to troubleshoot this issue?
>
>
>
>
> --Thanks
>
> Please visit http://www.ipswitch.com/support/mailing-lists.html
> to be removed from this list.
>
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