Our emails are going to Bulk or Junk Folders hotmail, yahoo mail, email delivery problem, bulk mail, junk mail, spam filter, black list, gray list, white list, reverse dns, domainkeys, DKIM, sender ID

We've got a problem with sending our emails to famous free email service users such as Yahoo, Hotmail and Gmail. We've fixed our problem with gmail but there is nothing changed with Yahoo and Hotmail. Our emails are automatically going to bulk or junk folders. Also we're encountering 421 error code problem with yahoo very frequently.

Our domain is "balca.net"
Our mail host domain is "mail.balca.net"
Our mailhost IP is "78.40.224.243"
We have reverse DNS records
78.40.224.243 PTR record: mail.balca.net. [TTL 3600s] [A=78.40.224.243]

We have Sender ID records
v=spf1 ip4:78.40.224.243 ~all      
v=spf2.0/mfrom ip4:78.40.224.243 ~all      

We have DomainKeys and DKIM record
mail._domainkey.balca.net.      p=MHwwDQYJKoZIhvcNAQE........ [cutted]
_domainkey.balca.net.      t=y; o=~; r=postmaster@balca.net

These are one of our typical emails' headers from YAHOO
-------------------------------------------------------------------------------------------------------------
X-Apparently-To:       cosane@yahoo.com via 206.190.49.101; Wed, 02 Jan 2008 20:07:23 -0800
X-YahooFilteredBulk:      78.40.224.243
X-Originating-IP:      [78.40.224.243]
Return-Path:      <ekart@balca.net>
Authentication-Results:      mta478.mail.mud.yahoo.com from=balca.net; domainkeys=pass (ok)
Received:      from 78.40.224.243 (EHLO mail.balca.net) (78.40.224.243) by mta478.mail.mud.yahoo.com with SMTP; Wed, 02 Jan 2008 20:07:23 -0800
DKIM-Signature:      v=1; t=1199333240; a=rsa-sha256; q=dns/txt; s=mail; d=balca.net; i=ekart@balca.net; c=relaxed/simple; l=444; bh=1UrqtUJIgsRZ6 iTZTq6J5da0Cbhr00EUewv61vy5Tkc=; h=DomainKey-Signature:Subject:Sender: From:Date:To:Reply-To:X-Priority:X-MSMail-Priority: Content-Transfer-Encoding:MIME-Version:X-Mailer:X-Sender-IP:Content-Type; b=Jef5dcme70jgFhOqb3G/N/H8S8yrIRMJBlfGck1H1OyU+WaRoFECtxT7OFGqAOxl4CEj4gT lP6DCqzxkwMwT8Xudvxy5O2W5nnTNYWxVXyJRS4LKnKuFztkK8eGxYOVT
DomainKey-Signature:      a=rsa-sha1; q=dns; s=mail; d=balca.net; c=nofws; h=Rec eived:Subject:Sender:From:Date:To:Reply-To:X-Priority:X-MSMail-Priority:C ontent-Transfer-Encoding:MIME-Version:X-Mailer:X-Sender-IP:Content-Type; b=OKewcSgZf4qwz6YIQRl3jrGszJXVAPhzcSZI5TwVZIszJNH4V7GDajN543f56aXKSFgS95N cZLAUbnC770oN6AwjwCQpeSXHNckmcipKecb5yFKAuV6f2FnRpUhoFj4O;
Return-Path:      <ekart@balca.net>
Received:      from Balca [78.40.224.243] by mail.balca.net with SMTP; Thu, 3 Jan 2008 06:07:03 +0200
Konu:      Ege Gurel size Balca.net'ten bir ekart gýnderdi
Sender:      "Balca Ekart" <ekart@balca.net>
Kimden:      "Balca Ekart" <ekart@balca.net>  Adres Defteri'ne EkleAdres Defteri'ne Ekle
Yahoo! DomainKeys bu mesaj1 göndereninin kimliini onaylad1; gönderen: balca.net. Ek bilgi
Tarihi:      Thu, 3 Jan 2008 06:07:03 +0200
Kime:      "cosane@yahoo.com" <cosane@yahoo.com>
Yan1t:      cosane@mynet.com
X-Priority:      3
X-MSMail-Priority:      Normal
Content-Transfer-Encoding:      Quoted-Printable
MIME-Version:      1.0
X-Mailer:      JMail 4.4 by Dimac
X-Sender-IP:      195.174.199.232
Return-Path:      ekart@balca.net
Content-Type:      text/plain; charset="iso-8859-9"
Content-Length:      435
-------------------------------------------------------------------------------------------------------------

and THESE ARE FROM HOTMAIL
-------------------------------------------------------------------------------------------------------------
X-Message-Delivery: Vj0zLjQuMDt1cz0wO2k9MDtsPTA7YT0w
X-Message-Status: n:0
X-SID-PRA: Balca Ekart <ekart@balca.net>
X-SID-Result: Pass
X-Message-Info: 6sSXyD95QpV8GrWUp1EncMRVnBhQgZWnaEsYEFVJcergKCfWk4M50WBKOzIhbkNz4oUljSq+k1J6VmcpNYPAzA==
Received: from mail.balca.net ([78.40.224.243]) by bay0-mc3-f9.bay0.hotmail.com with Microsoft SMTPSVC(6.0.3790.2668);
       Wed, 2 Jan 2008 20:20:58 -0800
DKIM-Signature: v=1; t=1199334056; a=rsa-sha256; q=dns/txt; s=mail;
  d=balca.net; i=ekart@balca.net; c=relaxed/simple; l=451; bh=tsZk2Y4DWpRjd
  MyXY8dQ7gTATkR5y90DamjprcNjZcg=; h=DomainKey-Signature:Subject:Sender:
  From:Date:To:Reply-To:X-Priority:X-MSMail-Priority:
  Content-Transfer-Encoding:MIME-Version:X-Mailer:X-Sender-IP:Content-Type;
  b=QbavLy5y+rBmIZJCdVbT/+UUjPFDZCl18DlVEY42Z35ATHWbowiLZSL/bhHtCFdOoYjKpEs
  P8bBqJJLc/NgAwwpu2JOeSDISj24yH5HJX+XB0yPN2ZMOgYfpeP5kgFuE
DomainKey-Signature: a=rsa-sha1; q=dns; s=mail; d=balca.net; c=nofws; h=Rec
  eived:Subject:Sender:From:Date:To:Reply-To:X-Priority:X-MSMail-Priority:C
  ontent-Transfer-Encoding:MIME-Version:X-Mailer:X-Sender-IP:Content-Type;
  b=hlJlZ9KQbEhb+0uxVVvz8cTaz80gVe9TXLdLas1Yt9WysbKEVdugxK0p2ynUVnLoqKmofuo
  HQ/mIS6H1As1U9OaFYzbk6T1NiXI/5ZC+1Lybm0IGEMq5HhsRhszkwuaO;
Return-Path: <ekart@balca.net>
Received: from Balca [78.40.224.243] by mail.balca.net with SMTP;
   Thu, 3 Jan 2008 06:20:39 +0200
Subject: Ege Gurel size Balca.net'ten bir ekart gönderdi
Sender: "Balca Ekart" <ekart@balca.net>
From: "Balca Ekart" <ekart@balca.net>
Date: Thu, 3 Jan 2008 06:20:39 +0200
To: "efecosan@hotmail.com" <efecosan@hotmail.com>
Reply-To: cosane@mynet.com
X-Priority: 3
X-MSMail-Priority: Normal
Content-Transfer-Encoding: Quoted-Printable
MIME-Version: 1.0
X-Mailer: JMail 4.4 by Dimac
X-Sender-IP: 195.174.199.232
Return-Path: ekart@balca.net
Content-Type: text/plain;
      charset="iso-8859-9"
Message-ID: <BAY0-MC3-F9nJKUziDQ00394931@bay0-mc3-f9.bay0.hotmail.com>
X-OriginalArrivalTime: 03 Jan 2008 04:20:59.0152 (UTC) FILETIME=[0ADF3900:01C84DC0]

Ege Gurel adl=FD ziyaret=E7imiz ( cosane@mynet=2Ecom ) size, Balca'n=FDn Duy=
gu Y=FCkl=FC Sayfalar=FD'ndan bir sayfa g=F6nderdi=2E=2E=2E G=F6nderilen say=
fan=FDn adresi ve e=F0er varsa, mesaj=FDn=FDz =FE=F6yle:

ADRES: http://www=2Ebalca=2Enet/

MESAJ: seni sevdi=F0imi s=F6yleyebilir miyim=3F

---------------------------------------------------------------------
Balca=2Enet; duygular=FDn bulu=FEma adresi=2E
http://www=2Ebalca=2Enet
-------------------------------------------------------------------------------------------------------------

We have tested our SenderID, DomainKeys and DKIM with several test services and everything seems fine.

We are a Turkish eCard site and you can easily notice that we have right Return-Path and Sender headers in our emails.

Please somebody help me to solve this unbelievable problem.

Thanks,

Efe Cosan

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