It can also depend upon the configuration on the recieving side; meaning,
are they spam filtering blindly, I've run into a number of sites with
poorly designed spam filters rejecting legitimate traffic. Are they virus
filtering the e-mail, I've seen a number of sites with improper virus
filters rejecting legitimate traffic. It's possible if this is
restricted to a few users having problems that their machines are
indeed infected and properly rejected. Are they 'bad word' filtering, same
as above. Alot of this can be determined by the error messages obtained,
though, they can be somewhat obsure, they can clue the recieving side as
to waht the issue is. The key being what are those error/rejection
messages trying to inform you?
Thanks,
Ron DuFresne
On Tue, 16 Apr 2002 Alexander.O'[EMAIL PROTECTED] wrote:
>
> You say a vast majority of mails are getting through fine, by this do you
> mean to the same company, if yes then check to see if it is always the same
> email addresses, if so have you checked with that company that the
> recipients address is actually correct,
> If it is only a few users on your network having problems sending mail then
> I would check your users mail client is sending emails in a standard
> format,
>
> At a guess I would say it looks like you are sending emails with some
> proprietary settings that the remote server doesn't like
>
> Rgds
> Alex
>
>
>
> Rick Brown
> <firewally2002@yahoo To: [EMAIL PROTECTED]
> .com> cc:
> Sent by: Subject: SMTP Problem - HELP!!!!
> firewalls-admin@list
> s.gnac.net
>
>
> 09/04/2002 13:57
>
>
>
>
>
>
> This is a bit OT but I'm desperate to find an answer.
> I have a W2K server in my DMZ running SMTP relay mail
> to an internal mail server. I'm seeing occasional
> delivery failures with the following error:
>
> Reporting-MTA: dns;mail.mycompany.com
>
> Received-From-MTA: dns;mail.othercompany.com
>
> Arrival-Date: Mon, 8 Apr 2002 12:13:01 -0400
>
>
> Final-Recipient: rfc822;[EMAIL PROTECTED]
>
> Action: failed
>
> Status: 5.6.1
>
> Diagnostic-Code: smtp;554 5.6.1 Body type not
> supported by Remote Host
>
>
> Final-Recipient: rfc822;[EMAIL PROTECTED]
>
> Action: failed
>
> Status: 5.6.1
>
> Diagnostic-Code: smtp;554 5.6.1 Body type not
> supported by Remote Host
>
> The vast majority of emails are getting through fine
> but these are failing. I've searched all over the
> place for some explanation of the error but haven't
> found much of anything. If anyone can shed some light
> on this I would REALLY appreciate it. Thanks.
>
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