Re: Event ID: 4000
- From: "Matt Kuzior [MSFT]" <mattku@xxxxxxxxxxxxxxxxxxxx>
- Date: Fri, 4 Nov 2005 11:58:01 -0800
Based on the text of your event log, it appears that DNS is working fine.
The problem may happen when your server attempts to connect to the remote
computer over SMTP (port 25).
Try using telnet directly against the remote host as described in
http://support.microsoft.com/default.aspx?scid=kb;en-us;153119
Or using the SMTPdiag tool
http://www.microsoft.com/downloads/details.aspx?FamilyID=BC1881C7-925D-4A29-BD42-71E8563C80A9&displaylang=en
If you find that the remote system has intermittent connection issues, you
can try configuring a more aggressive retry schedule, The defaults are 15
minutes for the first try followed by 30 then 60. Queuing in this case is
normal.
http://support.microsoft.com/default.aspx?scid=kb;en-us;303734
I also found the following article interesting. You my want to check if you
have multiple network cards configured.
http://support.microsoft.com/default.aspx?scid=kb;en-us;249104
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"Marcelo" <Marcelo@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:ED02908C-E7AB-41BB-A42B-84EFACCD4C3F@xxxxxxxxxxxxxxxx
>I am running smtp sevrice on a WIN2000 SP4 server. The smtp is usually
> sending mail normally and all of a sudden it starts queuing messages and
> the
> event log says
> Event ID: 4000
> Message delivery to the remote domain 'mydomain.com' failed for the
> following reason: The remote server did not respond to a connection
> attempt.
>
> At that point I tried pinging and resolving domain names checking DNS and
> nslookup and came clean.
> Incoming mail gets processed immediatelly, only OUTgoing mail gets delayed
> until I reboot the server (only solution so far). I tried restarting IIS
> and
> doesn't do it.
>
> I removed the AVirus (which was configured to NOT scan sensible folders)
> btu
> it still happens, so much for the AV theory....
> No Errors on DNS and no firewall problems since mail comes and goes except
> on those few minutes every few hours.
>
> I am running GFI MailSecurity and GFIMailEssentials on that machine but I
> already cleared thsi topic with their Tech Support.
>
.
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