I am so frustrated with setting up an email server well.

I have setup Postfix server correctly. But when I send a serial key email to my client(yahoo or hotmail), it goes to spam box directly. Gmail is fine.

Attachment are two email headers I send to my hotmail and yahoo mail. All authentication is pass. (SPF, sender-id, dkim, Domainkey) I did them all. but still same result. Yahoo email header has this line X-YahooFilteredBulk: 96.126.103.228

It seems my beyondcow.com ip(96.126.103.228) been blocked by their system. It's weird, my email volume is tiny, like 5~10 legitimate email daily all serial key email(My clients make a payment and they expect this serial key email). I never send a single spam to anyone even a news letter. My postfix is not an open relay and I have alway_bcc to myself added. Is this bad ip reputation comes from my previous user? or something else.

Anyone can give me a hand here.

________________________________________________________

???: Beyondcow <support@beyondcow.com>
??: Your Order From Beyondcow
??: 29 April, 2012 6:55:18 AM PDT
??: Support Beyondcow <support@beyondcow.com>
X-Store-Info: 7YsnRco0gQJ3EyekdHv0zgpxljZUE8Iw2Q3MIHI/bZixUp8XsgCq+VT+Qaj2u7c7Cyzy083hbLFPoRosKJ8dSQIFAA6afy90E/ysScG8keS3R5B7d/Su8GJ0Odzx5nLqFYQ3LgjumEM=
Authentication-Results: hotmail.com; sender-id=pass (sender IP is 96.126.103.228) header.from=support@beyondcow.com; dkim=pass header.d=beyondcow.com; x-hmca=pass
X-Sid-Pra: support@beyondcow.com
X-Message-Status: n:0:n
X-Sid-Result: pass
X-Dkim-Result: Pass
X-Auth-Result: PASS
X-Message-Delivery: Vj0xLjE7dXM9MDtsPTA7YT0wO0Q9MTtHRD0yO1NDTD0w
X-Message-Info: NhFq/7gR1vSoB9kIHjVnvAeOg87BQ9YD+oowt7o9Ii1fagDTR+iUDq6g//s7Jm5gI5SEMogYe5xosq6G/XgPwQEzbGCbmZI5SNNrqS+IpL4Y54kiX4yHn9JyuDd8fOL6hup+d111s6E=
Received: from beyondcow.com ([96.126.103.228]) by BAY0-MC2-F7.Bay0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4900); Sun, 29 Apr 2012 06:55:19 -0700
Received: by beyondcow.com (Postfix, from userid 33) id 0C5A63BB8F9; Sun, 29 Apr 2012 21:55:19 +0800 (HKT)
Domainkey-Signature: a=rsa-sha1; s=default; d=beyondcow.com; c=simple; q=dns; b=NhFWlR0lWXe7BVaURtAx6MaDzJjJmxzh6PvAam4KnNVv1cOmJbuveDaApvZKOiLux 22w0eqmBBOHccpX58gsfjFWbtMXfNA/RzSMsB7snkQoNhWrneu/qrmcGiopJQrYcjV2 oyQTFC/pKj0f28WT1IzmuqsaWJGhVLczTbsriUs=
Dkim-Signature: v=1; a=rsa-sha256; c=simple/simple; d=beyondcow.com; s=mail; t=1335707719; bh=aAicdJgCI8QAEsmGpXG9+xl8rrrFXvM4lBeviGECrqY=; h=To:Subject:Date:From:Message-ID:Reply-to:MIME-Version: Content-Transfer-Encoding:Content-Type; b=vvxXLGuk22sQhoOjDItkWmPZUvVhLLFZB1oEwQnDJpwV9YnAhwtMKtEHdD5KKcIrX i8cssHseFODw4QKireK32T5DNBY9UDNty6WUno9eaVrJKse4VRXz21Ya9dKDvLC9v5 XNtWngOEpKaK+r0cgB709MUC5bXb7ReQh2R1xJGs=
Message-Id: <5a4f2e6526dc438fff9940443ea2f146@beyondcow.com>
Mime-Version: 1.0
Content-Transfer-Encoding: base64
Content-Type: text/plain; charset="UTF-8"
Return-Path: support@beyondcow.com
X-Originalarrivaltime: 29 Apr 2012 13:55:19.0350 (UTC) FILETIME=[B699A560:01CD260F]


From support@beyondcow.com Tue May 1 05:54:09 2012
X-Apparently-To: xxchristinexxsa@yahoo.com.cn via 202.165.102.82; Tue, 01 May 2012 05:54:13 +0800
Return-Path: <support@beyondcow.com>
X-YahooFilteredBulk: 96.126.103.228
Received-SPF: pass (domain of beyondcow.com designates 96.126.103.228 as permitted sender)
X-YMailISG: rmunfM0WLDvxzm0VyfanSsZgW19c3UZgvyesgYCHa4btSGFf
3O55na4alNT1CEQ6cWhqEBICUu0FKVn0agcQgoDjOea5CT.tPC45YxIFP11d
i0w7zcSoTDaSQ2IMXbQwJAnxfE4ok0A8mbXVFE8UBP70iSrRwmkQOEqFaCiG
Mt7BRg0kqWXYOnevwyvjIVyJpXV3KVmes5TMjk3i39VlEbeJ716zj5EPEOSs
U016Kz50m5vXk0YXG8iBU8cxBZrf6gVDZktMkndQqXbzN3VIqLnj5bIBAp_s
jKo_Pewuj4_vAzSesAtvGahJYIclrXhGhypyXTAxRTKO6cZZOi2QZLbw2tDx
O8kBFoGnSsOb_vuz4FjX.RmXkaQQoDctT0lfUzr_xxC6blsRR4NsIIiyQl.T
gw--
X-Originating-IP: [96.126.103.228]
Authentication-Results: mta1004.mail.cnb.yahoo.com from=beyondcow.com; domainkeys=pass (ok); from=beyondcow.com; dkim=pass (ok)
Received: from 127.0.0.1 (EHLO beyondcow.com) (96.126.103.228)
by mta1004.mail.cnb.yahoo.com with SMTP; Tue, 01 May 2012 05:54:12 +0800
Received: from [10.0.1.13] (S0106602ad074775d.vc.shawcable.net [70.79.2.95])
(Authenticated sender: support@beyondcow.com)
by beyondcow.com (Postfix) with ESMTPSA id C5F133BB8F9
for <xxchristinexxsa@yahoo.com.cn>; Tue, 1 May 2012 05:54:09 +0800 (HKT)
DomainKey-Signature: a=rsa-sha1; s=dk; d=beyondcow.com; c=simple; q=dns;
b=G853WhUxmWMUau8TkggKiKvnjYJBD/Xvf/TSA7l5wWWtcd9uBwUlROajYvrJgEyp1
5kJxI0VSg7Og30koGmDlVwNkmTV+v2/mnq63s4jEWFpudRQ6ZgYR6QcDEhY05kJsN4H
YroXJWl+csoqrQ480+LhvQDUXv3zszU7NVhOE1k=
DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=beyondcow.com; s=mail;
t=1335822849; bh=pQEpa91H88fs0VrpD29Eogly/FjGMmdDMbkqfUVQaYc=;
h=From:Content-Type:Content-Transfer-Encoding:Subject:Date:
Message-Id:To:Mime-Version;
b=Lq6X8MxE6QA26rCkADMHXmkp8VI2NbgjGNfEI/8ZuE12DuO6uM9PoPvSJVeIsQRmt
AeG4oUNfoXWhmnOEOMz/fE/+nJc07MIP4BfouzjBumLs1GA5QyXGPs2QJFJ/r3fNI6
NTMChkSQ+pGtt4yEm7vBHNtEYkAmt2As739/fcKo=
From: "support@beyondcow.com" <support@beyondcow.com>
Content-Type: text/plain; charset=GB2312
Content-Transfer-Encoding: base64
Subject: =?GB2312?B?usOw0aGhztK6zcTjyKU=?=
Date: Mon, 30 Apr 2012 14:54:09 -0700
Message-Id: <038F4056-C800-4A21-8D59-5D254BBAE97E@beyondcow.com>
To: xxchristinexxsa@yahoo.com.cn
Mime-Version: 1.0 (Apple Message framework v1257)
X-Mailer: Apple Mail (2.1257)
Content-Length: 17

It looks like you're doing everything that you should. The large webmail providers often seem to block certain IP addresses or treat mail from them as junk even if you are not sending any spam. Sometimes this is because of bad behavior by a previous user, but sometimes there doesn't seem to be any reason at all. It can be really difficult to reach someone to try to get your IP address removed or even find out if you are on the list.

One thing that might help is if your clients (the Yahoo or Hotmail users) click the "not spam" link to tell Yahoo/Hotmail that your messages are legitimate.

Another option may be to put in a support ticket with Linode to be moved to a different IP address or data center. Of course, there is no guarantee that your new address won't have the same problem.

Sometimes the content of the email matters, with yahoo (some years ago) I had a problem with activation emails that contained links being marked as spam, taking the http:// bit out made them go straight to the inbox. It might work for you, these days if I have to send any quantity of email that needs a high chance of being received I send via amazon ses

_________________
Paid support
How to ask for help
1. Give details of your problem
2. Post any errors
3. Post relevant logs.
4. Don't hide details i.e. your domain, it just makes things harder
5. Be polite or you'll be eaten by a grue

Yes, it seems not much I can do.

PM sent.

_________________
Kevin a.k.a. Dweeber

Email sent.