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E-mail/CDONTS error


E-mail/CDONTS error MikeR
9/16/2005 9:13:29 PM
iis smtp nntp: I got the following bounce notice from the recipient of e-mail sent using CDONTS from my
hosted site. I can't figure out which end is in error. Google hasn't been my friend on
this one.

This is an automatically generated Delivery Status Notification.

Delivery to the following recipients failed.

someone@some.net

=============================================================================
Reporting-MTA: dns;beta
Received-From-MTA: dns;beta
Arrival-Date: Fri, 16 Sep 2005 19:14:22 -0400

Final-Recipient: rfc822;someone@some.net
Action: failed
Status: 5.0.0
Diagnostic-Code: smtp;550 HELO does not contain FQDN

The code is:
body = Request("Comments") & vbcrlf & vbcrlf
body = body & "Email Address: " & Request("email") & vbcrlf

Set objMail = Server.CreateObject("CDONTS.NewMail")
objMail.From = "Webmaster@mydomain.com"
objMail.To = "someone@some.net"
objMail.Subject = "Comments - Prefix Lookup"
objMail.Body = body
objMail.importance=2
objMail.Send
Set objMail = nothing

Thanks,
Re: E-mail/CDONTS error Al Mulnick
9/16/2005 10:45:22 PM
The destination MTA is giving back a 5.x.x error because your host
(described as beta) is not presenting itself as a fully qualified host when
the HELO command is given.

Probably an anti-spam measure or just a picky MTA.

You should have your MTA configured to present the FQDN whenever it talks.
Sometimes that's just a reverse DNS PTR.

Al


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Re: E-mail/CDONTS error MikeR
9/17/2005 12:00:00 AM
OK. Thanks. I'll talk to my ISP.
Mike

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Re: E-mail/CDONTS error MikeR
9/17/2005 7:44:09 AM
Thanks, Al -
I'm very ignorant about this.
It's not my server, so I don't think I can do anything about the configuration, if I
understand you. What's MTA? Mail Transfer ??
Would CDO be better?
Mike

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Re: E-mail/CDONTS error Al Mulnick
9/17/2005 8:38:00 AM
MTA = Mail Transfer Agent: describes the software application that transfers
mail on behalf of other applications. Examples: Sendmail, Exchange, Postfix
are all MTA applications.
CDO isn't the problem. It's the FQDN of the MTA that is sending. beta is the
name that shows. Whoever owns the server needs to configure it.

Al



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Re: E-mail/CDONTS error Al Mulnick
9/18/2005 10:30:40 AM
Interested to know how it turns out. I'm kind of surprise your ISP hosts
your IIS SMTP server, but interested how it turns out anyway.

Al
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Re: E-mail/CDONTS error MikeR
9/18/2005 7:31:11 PM
Al -
I've totally lost the bubble here (probably in your previous post). The e-mail is being
sent via CDONTS from an ASP page on my website. It goes to an e-mail address which is a
forwarder to the real recipient.

Where do CDONTS and SMTP brush? Or do they? Should I be talking to the forwarder(2nd in
the chain) or my ISP(1st)? Sorry for the lack o'knowlege.
Thanks,
Mike

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Re: E-mail/CDONTS error Al Mulnick
9/18/2005 8:32:34 PM
It is confusing :)

What host is 'beta' and who owns responsibility for it?

Remember, the problem is that the HELO command is not presenting the FQDN of
the sending mail host. [Diagnostic-Code: smtp;550 HELO does not contain
FQDN] which is likely due to a reverse DNS PTR record that's missing.

Al






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Re: E-mail/CDONTS error MikeR
9/19/2005 8:37:13 AM
Inline

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I don't know. The return address on the error e-mail is postmaster@beta. I don't know a
server or domain named beta.

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Who generates the HELO command? Beta?

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Re: E-mail/CDONTS error Al Mulnick
9/19/2005 9:34:24 AM
In this case, yes the host named beta generated the HELO command.
If it's not your host, then it's one of the hosts that lies in your path.
Could be your host, could be the ISP, could be the recipient. Any
information in the headers of the message? If it's not your host, then you'd
want to start outside your network with the next hop and follow it until you
find the host.

You can look up the dns records and open your own conversations to the hosts
with a telnet session to TCP 25 (from a windows command line: telnet host 25
will open the session you want.)

Feel free to drop a note offline if you need some additional help with
troubleshooting this. Some more details (some you may not want to share on
a public board) would be needed to help any more than these suggestions.

Al




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Re: E-mail/CDONTS error P C
9/26/2005 10:39:18 PM
Are all the email address for From, To, CC etc. in the the intereent
style, e.g. someone@somhere.com?

...PC


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