Need some SMTP troubleshooting help - Please!.

[Bryan O'Neal]

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>
(wait for response)
RCPT To: <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
> 
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