Jaysan,
Starting from DNS data using the FQDN you gave:
DNS:
humphry-davy.cornwall.sch.uk.
nameserver = dns0.swgfl.ifl.net.
nameserver = dns1.swgfl.ifl.net.
100, mx2.ifl.net.
10, mx.swgfl.ifl.net.
50, mx1.ifl.net.
mx.swgfl.ifl.net.
62.171.194.108
62.171.194.109
mx1.ifl.net.
213.18.248.74
mx2.ifl.net.
213.18.248.75
Telnet to host, Using MX 10 and this address: 62.171.194.109
220 dns0.swgfl.ifl.net RM Scanmail ESMTP server Tue, 03 Apr 2001 15:32:42
+0000
now this address: 62.171.194.108 -
220 dns1.swgfl.ifl.net RM Scanmail ESMTP server Tue, 03 Apr 2001 15:41:16
+0000
Virus scanners? Maybe these hosts are rerouting or deleting the mail based
upon virus or other filter?
Telnet to host, Using MX 50:
220 mx1.ifl.net ESMTP Sendmail 8.10.1/8.10.1; Tue, 3 Apr 2001 15:35:45 GMT
Again, another server which may have some rules, A-V software or something
that might reroute email.
Telnet to host, Using MX 100:
220 mx2.ifl.net ESMTP Sendmail 8.10.1/8.10.1; Tue, 3 Apr 2001 16:37:56 +0100
See above!
None of these are IMail, so any email that is destined for the IMail machine
must apparently pass through any one of these SMTP servers, who can have an
effect on delivery. All need to be checked to determine where the email may
now reside (it must be someplace, if it was not bounced, but it may have
been accepted and deleted, too, by A-V or other filter).
The only way you can be sure only IMail is involved would be to send the
email using an email address that resolves to the IP used by IMail. I was
not able to determine the IP or hostname, so could not connect to the IMail
server.
Daniel Donnelly
________________________________________________________
----- Original Message -----
From: "Network Manager" <[EMAIL PROTECTED]>
To: "IMail_Forum@list. ipswitch. com" <[EMAIL PROTECTED]>
Sent: Tuesday, April 03, 2001 11:05 AM
Subject: [IMail Forum] delivery problems
> I am getting reports that some emails are not getting through to my
system.
> I receive an SMTP Feed from my ISP. I have tested the system as much as I
> can, and all mail that I send, seems to get through. I have sent from
> various accounts, and it all seems to reach the domain fine, however, I am
> still getting reports that people have sent email, but they have not been
> delivered - or returned to the sender. I have taken my filters off line,
> but this has made no difference. This is the affected domain:
>
> humphry-davy.cornwall.sch.uk
>
> Any help appreciated. . . . .
>
> -----------------------
> Jaysan Bunoomally
> Network Manager
> Humphry Davy School
> Penzance, CORNWALL
>
>
> Please visit http://www.ipswitch.com/support/mailing-lists.html
> to be removed from this list.
>
> An Archive of this list is available at:
> http://www.mail-archive.com/imail_forum%40list.ipswitch.com/
>
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