Need some SMTP troubleshooting help - Please!.

Thu Mar 13 10:35:14 MST 2008

Thanks, I am not on any of the blacklists (cheeked again today), and I
have submitted to be on the white list (Just now), and I have used their
open relay test (Several times), and submitted for retesting (Two or
three times now).  I even had yahoo member contact support on our behalf
and sent emails to 'abuse-admin at cc.yahoo-inc.com' but have not had any
luck yet.  It's like Yahoo is a black whole were nothing I send ever
gets processed.

________________________________

From: plug-discuss-bounces at lists.plug.phoenix.az.us
[mailto:plug-discuss-bounces at lists.plug.phoenix.az.us] On Behalf Of
Charles Jones
Sent: Thursday, March 13, 2008 9:39 AM
To: Main PLUG discussion list
Subject: Re: Need some SMTP troubleshooting help - Please!.

There is also this:
http://help.yahoo.com/l/us/yahoo/mail/postmaster/postmaster-26.html

553 Mail from x.x.x.x not allowed

Open proxies <http://cc.uoregon.edu/cnews/fall2002/openproxy.html>  and
open relays <http://www.mail-abuse.com/an_sec3rdparty.html>  are a very
common source of spam. Yahoo! uses a variety of techniques to detect
these, and Yahoo! does not accept SMTP connections from either open
relays or open proxies. Your connection may be rejected because the
email server that you use for sending email is probably an "open relay"
or "open proxy." These types of email servers can easily be tricked into
sending large amounts of unsolicited email. 

Many email services refuse mail from such servers, until the server has
been fixed to stop relaying spam to innocent users. 

To correct this problem, you should contact the system administrator of
your mail server (usually "postmaster at your-domain.com"
<mailto:postmaster at your-domain.com> ) and forward them a copy of the
bounced email you received. Otherwise, you should call technical support
and alert them of the problem. 

You can check <http://www.robtex.com/rbls.html>  to see if your mail
server is listed on several of the public open relay DNSBLs. Please note
that if your server is not listed at this link, it may still be an open
proxy or open relay. Abuse.net provides a web-based open relay test
<http://www.abuse.net/relay.html> . Instructions to close open relays
are readily available on the Internet. 

Testing triggers

To determine whether an IP address is an open relay or open proxy, a
series of tests need to be performed on that IP address. Yahoo! actively
performs tests for open relays and open proxies but only after that IP
address has been identified as a source of significant suspicious
inbound traffic to the Yahoo! network. In other words Yahoo! only makes
reactive tests triggered on inbound traffic from that IP address, and
pro-active tests are never performed by Yahoo!. 

Minimal impact

Yahoo! strives to ensure that any testing performed as a consequence of
the inbound traffic triggers have the least impact possible on the
tested address.

Retest policy

Once an IP address has been tested, no further tests are performed for
at least three days regardless of the outcome of the tests. 

Actions based on test results

If an IP address is determined to be an open relay or open proxy, Yahoo!
reserves the right to reject all SMTP traffic from that IP address for a
minimum period of 60 days. 

Source address of tests

All tests run by Yahoo! are run on readily identifiable servers that
have forward and reverse DNS entries ending in yahoo.com. Any email
addresses and servers used as part of the testing likewise are always
identified with yahoo.com DNS entries or yahoo.com email addresses. 

How to remove your server 

You should check (and secure) your server for open relays (such as
http://www.abuse.net/relay.html) and open proxies (such as
http://www.unicom.com/sw/pxytest/ -- these may require installing
software on servers outside your network for proper testing). After you
are reasonably sure your network is secure, please submit your IP
addresses to Yahoo! for retesting
<http://help.yahoo.com/l/us/yahoo/mail/postmaster/defer.html> .

-Charles

Charles Jones wrote: 

	Just thought I would mention that I know someone whose mail
client was malfunctioning (trying to login with the wrong password over
and over), and their IP was blocked with the same symptoms that you
have. Is there any chance that you did something to trigger their IPS?
If so then the solution is to just wait for the rule to expire :)

	-Charles

	Bryan O'Neal wrote: 

		Thank you, indeed I do get a hard reject saying that
they are refusing
		mail from my IP.  Only Yahoo is doing this and I am not
on any of the
		major spam lists but someone out their does not like me.
I would check
		out DNSSTUFF, but I would rather not pay them their
annual subscription
		fee (With auto renew) for a one time search; are their
any free black
		list search service out their?  Or can some one who does
have an account
		please search DNSSTUFF for me on one of my IP's?
(66.193.205.166)

		553 Mail from 66.193.205.166 not allowed - [10]

		-----Original Message-----
		From: plug-discuss-bounces at lists.plug.phoenix.az.us
		[mailto:plug-discuss-bounces at lists.plug.phoenix.az.us]
On Behalf Of
		Richard Wilson
		Sent: Wednesday, March 12, 2008 9:49 PM
		To: Main PLUG discussion list
		Cc: Arizona State University Linux Users Group
		Subject: Re: Need some SMTP troubleshooting help -
Please!.

		You can check your IP address on dnsstuff.com -- one of
their services
		checks to see if you're listed on any of 200+ Antispam
services.

		You can also try a manual session, doing a telnet to
a.mx.mail.yahoo.com
		(or any of their other mail relays -- "dig yahoo.com mx"
will give you
		the list) and seeing what it is they don't like about
you (I assume
		conerstonehome.com in the example that follows):

		telnet a.mx.mail.yahoo.com 25
		(wait for CONNECT msg)
		HELO mailserver.cornerstonehom.com
		(wait for 2XX response)
		MAIL From: <id at cornerstonehome.com>
<mailto:id at cornerstonehome.com> 
		(wait for response)
		RCPT To: <id at yahoo.com> <mailto:id at yahoo.com> 
		(wait for response)
		DATA
		send something here
		.
		QUIT

		You may get a 4XX ("soft"/temp) or 5xx (Hard) reject on
one of the
		responses that should indicate why they don't like you.

		HTH,

		Richard Wilson
		(yes I have the "privilege" of getting mail addressed to
postmaster at
		too darn many domains...)

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

		On Wed, 2008-03-12 at 19:23 -0700, Bryan O'Neal wrote:

			Ok I have a problem in that I am (still) unable
to send anything to 
			Yahoo, or any domain who's email is hosted by
Yahoo.  I don't get a 
			NDR, it is as if I simply can not connect and I
get nothing in my 
			logs!  I believe it is connection oriented
because three boxes (Two 
			exchange domains and one sendmail) with three
external IP's have one 
			common point and that is one border router with
one T1 connection.  
			But I can not get any response out of Yahoo and
I can not give any 
			details because I have never had to trouble
shoot down to this level

		before.

			Any suggestions on how to figure out what the
*&!@$#! is going on with

			my SMTP connections to Yahoo?

			Bryan O'Neal
			Cornerstone Homes & Development, Inc.
			4220 E. McDowell Rd Ste. #108
			Mesa, AZ 85215
			(480) 505-1900
			http://www.cornerstonehome.com

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.PLUG.phoenix.az.us/pipermail/plug-discuss/attachments/20080313/d78f379c/attachment.htm 