RE: Email oddity -- MIDRANGE-L

Here is the answer from cox.net themselves, and what can be done about it, if your security allows. http://postmaster.cox.net/confluence/display/postmaster/Error+Codes++554+-+source+IP+rejected+-+no+rDNS

"jmmckee" <jmmckee@xxxxxxxxxxxxxx> wrote:

Thanks for the article. Maybe, it >will< be resolved today. Just
(apparently) have to supply the answers, as well as the questions when
asking some support people for help.

John McKee

-----Original message-----
From: "Dennis Lovelady" iseries@xxxxxxxxxxxx
Date: Thu, 12 May 2011 06:09:47 -0500
To: "'Midrange Systems Technical Discussion'" midrange-l@xxxxxxxxxxxx
Subject: RE: Email oddity

I don't know if you had noticed that cox.net was specifically

mentioned in

that article, but in an ambiguous way. Thought it was interesting

anyway.

I hope it's resolved.

Dennis Lovelady
http://www.linkedin.com/in/dennislovelady
--
"We lived for days on nothing but food and water."
-- W.C. Fields

I had suggested that. Person I was working with was just a little
reluctant to listen. I appreciate your explanation. I did suggest
that he format the return address exactly as his Outlook return

address

was. What I got was a rather odd address.

Thanks for the confirmation.

John McKee

-----Original message-----
From: "Dennis Lovelady" iseries@xxxxxxxxxxxx
Date: Wed, 11 May 2011 19:55:52 -0500
To: "'Midrange Systems Technical Discussion'"

midrange-l@xxxxxxxxxxxx

Subject: RE: Email oddity

My $0.18 says that this is the issue:

by a host with no rDNS <<

The host that sent that message presents itself as an IP address,

but

reverse DNS (translation from IP address to DNS) is not possible.

Many ISPs

will reject such mail since most spam has that attribute. It is

likely that

Cox is one of those. This was the rule that VZ finally relaxed a

few

years

ago, that had stopped that US site's mail from being received.

Here's a research starter for you:
http://www.jaguarpc.com/forums/showthread.php?t=11512

Dennis Lovelady
http://www.linkedin.com/in/dennislovelady
--
"Some see the problem in every opportunity, some see the

opportunity

in

every problem."
-- Kevin Cowling

Message that >is< sent and received by Cox is produced by

Outlook.

Message sent via SNDEMAIL, which forwards to the email server,

is

just

typed in.

Below is a sample. I have obfuscated part of the domain, and

IP

addresses. Nothing more.

While doing that, I saw in the last line:

-------------------------------------------------- 0.14

MISSING_MID

Missing Message-Id: header 0.10 RDNS_NONE Delivered to trusted

network

by a host with no rDNS 0.50 BSF_SC5_MJ1963 Custom Rule MJ1963

Yet, I received it. Which implies my ISP is more tolerant than

Cox.

This was produced by the SENDEMAIL command and the API that it

calls.

Is that message stating what is actually wrong? And, if so,

how is

it

fixed? Is this in the SENDEMAIL processing, or the main

Windows

email

server?

John McKee

Return-Path: <S1015362@xxxxxxx>
Received: from X.X.net (X.X.net [1.1.1.1])X.X.net (IceWarp

10.0.7)

with ESMTP id UXC81216 for <JMMCKEE@xxxxx>; Wed, 11 May 2011

13:43:16 -

0500
X-ASG-Debug-ID: 1305139395-285b40870001-7i1fjv
Received: from S1015362.X.org ([1.1.1.1]) by X.X.net with

ESMTP

id

NHJ2TLgfYcD9PD4p for <JMMCKEE@xxxxx>; Wed, 11 May 2011 13:43:16

-

0500

(CDT)
X-Barracuda-Envelope-From: S1015362@xxxxxxx
X-Barracuda-Apparent-Source-IP: 1.1.1.1
Sender: S1015362@xxxxxxx
Date: Wed, 11 May 2011 13:42:51 -0500
From: X_X_ER_CENTER <S1015362@xxxxxxx> [+]
MIME-Version: 1.0
To: JMMCKEE@xxxxx <JMMCKEE@xxxxx> [+]
Subject: PHI!!
Content-Type: multipart/mixed; boundary="--PART.BOUNDARY.1"
X-ASG-Orig-Subj: PHI!!
X-Barracuda-Connect: UNKNOWN[68.93.9.131]
X-Barracuda-Start-Time: 1305139395
X-Barracuda-URL: http://24.249.116.47:8000/cgi-mod/mark.cgi
X-Virus-Scanned: by bsmtpd at X.net
X-Barracuda-Bayes: INNOCENT GLOBAL 0.5145 1.0000 0.7500
X-Barracuda-Spam-Score: 1.49
X-Barracuda-Spam-Status: No, SCORE=1.49 using per-user scores

of

TAG_LEVEL=2.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=3.0
tests=BSF_SC5_MJ1963, MISSING_MID, RDNS_NONE
X-Barracuda-Spam-Report: Code version 3.2, rules version
3.2.2.63446Rule breakdown below pts rule name description ----

----

----

--------------

--------------------------------------------------

0.14

MISSING_MID Missing Message-Id: header 0.10 RDNS_NONE Delivered

to

trusted network by a host with no rDNS 0.50 BSF_SC5_MJ1963

Custom

Rule

MJ1963
Message-Id: <20110511184319.4BB851894396@xxxxxxx>
-----Original message-----
From: Dennis iseries@xxxxxxxxxxxx
Date: Wed, 11 May 2011 14:36:48 -0500
To: Midrange Systems Technical Discussion

midrange-l@xxxxxxxxxxxx

Subject: Re: Email oddity

How is the message being created? Is it possible to share

the

headers of that message (sans any personal details) with the

group?

I've seen a couple of issues like this. One was at a large

US

Government site, that was black-listed by Verizon. Not pretty,

and

only a policy change at Verizon cleared it up. I don't

remember

the

details behind the isssue - had something to do with sender

domain

or

sending server's CNAME record, I think, though. Anyway, the

apparent

effect was that any mail that server sent could be received,

except

by

VZ customers.

The other is DNS/Routing, though this is pretty rare. A DNS

at

one

installation had invalid information for a large recipient

server,

like

Cox.

Might want to check the spam rules and any mailbox options at

the

Cox

site too.

Good luck.

"jmmckee" <jmmckee@xxxxxxxxxxxxxx> wrote:

I was asked, to ask, if anybody has seen this.

Guy here attempts to send an email from the i to his

personal

email

account at cox.net. Never gets it. He can have the i send

to

my

personal email and all is well. He can send an email from

Outlook

to

his Cox account, and that goes through as well.

I have suggested to him that Cox may be doing address

verification,

and

that what he has chosen for a sender name does not match,

exactly,

the

registered name in the mail server. The i is NOT the mail

server.

Any ideas as to why a mail generated from Outlook would go

through

to

Cox, but not from the i?

MAILTOOL would be nice, but not likely an option.

John McKee

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