I am facing a new type of problem if u can help me then plz help me.
when I am mailing from my server (mithilesh@classicsoftwares.com) to xyz@yahoo.com then delivery is failure and same when I am mailing from Yahoo address to xyz@classicsoftwares.com then it again failure delivery shows.But when I am mailing from my server to any other server like xyz@hotmail.com then it is working smoothly.
Can you give me what is the actual problem?

Thank you
:o

DO you have any of the returned mail???

Post the headers...

It sounds like a hostname problem in sendmail or exim to me.

Here I am posting the returning mail.



Message from yahoo.com.
Unable to deliver message to the following address(es).

<mithilesh@classicsoftwares.com>:
66.96.210.201 failed after I sent the message.
Remote host said: 550 rejected: unknown local part in sender
<mithilesh2k1@yahoo.com>

--- Original message follows.

Return-Path: <mithilesh2k1@yahoo.com>
Message-ID: <20011103223412.48706.qmail@web13204.mail.yahoo.com>
Received: from [203.122.61.30] by web13204.mail.yahoo.com via HTTP;
Sat, 03 Nov 2001 14:34:12 PST
Date: Sat, 3 Nov 2001 14:34:12 -0800 (PST)
From: mithilesh kumar <mithilesh2k1@yahoo.com>
Subject: hello
To: mithilesh@classicsoftwares.com
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary="0-1908697973-1004826852=:46068"

--0-1908697973-1004826852=:46068
Content-Type: text/plain; charset=us-asc

Originally posted by mithilesh
Here I am posting the returning mail.



Message from yahoo.com.
Unable to deliver message to the following address(es).

<mithilesh@classicsoftwares.com>:
66.96.210.201 failed after I sent the message.
Remote host said: 550 rejected: unknown local part in sender
<mithiles2k1@yahoo.com>

--- Original message follows.

Return-Path: <mithilesh2k1@yahoo.com>
Message-ID: <20011103223412.48706.qmail@web13204.mail.yahoo.com>
Received: from [203.122.61.30] by web13204.mail.yahoo.com via HTTP;
Sat, 03 Nov 2001 14:34:12 PST
Date: Sat, 3 Nov 2001 14:34:12 -0800 (PST)
From: mithilesh kumar <mithilesh2k1@yahoo.com>
Subject: hello
To: mithilesh@classicsoftwares.com
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary="0-1908697973-1004826852=:46068"

--0-1908697973-1004826852=:46068
Content-Type: text/plain; charset=us-asc


In this message, it simply says there is a local config error on your server (@classicsoftwares.com). You need to add classicsoftwares.com as a local domain.


Your server is down now.

I just got this error exactly. my domain is in the /etc/localdomains any other ideas?



Message from yahoo.com.
Unable to deliver message to the following address(es).

<support@peoplehost.com>:
64.191.98.195 failed after I sent the message.
Remote host said: 550 rejected: unknown local part in sender
<horrighs@yahoo.com>

--- Original message follows.

Return-Path: <horrighs@yahoo.com>
Message-ID: <20030326164038.2853.qmail@web40801.mail.yahoo.com>
Received: from [68.78.64.235] by web40801.mail.yahoo.com via HTTP; Wed,
26 Mar 2003 08:40:38 PST
Date: Wed, 26 Mar 2003 08:40:38 -0800 (PST)
From: Steve Horrighs <horrighs@yahoo.com>
Subject: test
To: support@peoplehost.com
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii

test

yes:-)

someone has added yahoo.com as a domain in your server. So your server thinks that yahoo.com mailbox in the same server and tries to route the mail there.

go to /etc/localdomains and delete the entry yahoo.com

also go to /etc/userdomains.com and delete.
delete the zone file if it is there.

and give a nice dose to the reseller who had done that:D