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Old 09-11-2010, 08:34 AM   #1
caracalsef
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Registered: Mar 2007
Location: Romania
Distribution: Open SuSE 12.1
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Postfix Problem. From one domain->Inbox. From another->Spam (Yahoo!)


Hi there! I have a problem with postfix. Recentrly I have registered a domain from godaddy.com. Until now, I had a free one from no-ip.org. The problem: when I'm sending emails from the free one, they go in Inbox, but from the recentrly registered one, the end up in Spam folder. The only difference in full headers is this:

Free one (Inbox):
Code:
Received:   from 127.0.0.1 (EHLO example.com) (xxx.xxx.xxx.xxx) by mta1037.mail.sp2.yahoo.com with SMTP; Sat, 11 Sep 2010 04:29:29 -0700
Received:   from example.no-ip.org (example.com [xxx.xxx.xxx.xxx]) (Authenticated sender: caracal) by example.com (Postfix) with ESMTPA id 8283E26D for <myemail@yahoo.com>; Sun, 4 Jul 2010 03:23:48 +0300 (EEST)
Recently registered one (Spam):
Code:
Received:   from 127.0.0.1 (EHLO example.com) (xxx.xxx.xxx.xxx) by mta1091.mail.ac4.yahoo.com with SMTP; Sat, 11 Sep 2010 04:50:28 -0700
Received:   from example.com (localhost [127.0.0.1]) (Authenticated sender: caracal) by example.com (Postfix) with ESMTPA id 616FD1E82F for <myemail@yahoo.com>; Sat, 11 Sep 2010 14:50:32 +0300 (EEST)
xxx.xxx.xxx.xxx = external IP
 
Old 09-14-2010, 06:30 AM   #2
caracalsef
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Registered: Mar 2007
Location: Romania
Distribution: Open SuSE 12.1
Posts: 13

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Nobody? If there's need for more infos, just ask what. Please, help. A tip, a try...anything!
 
Old 09-14-2010, 07:11 AM   #3
jamrock
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Registered: Jan 2003
Location: Kingston, Jamaica
Posts: 444

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This happens fairly often with Yahoo, Hotmail and similar services. They have configured spam rules to limit the amount of spam that passes to people's mail boxes.

No one knows for sure why mail gets put into the spam folder. Here are a few possibilities.

Dynamic i.p. addresses are often blocked

Addresses that have been used by spammers in the past are often blocked

Mail servers that have incorrectly configured DNS settings are often blocked.

Here is an article I saw at http://www.postfix.org/docs.html. It gives some insight into how to correctly configure DNS for a mail server

http://bind8nt.meiway.com/itsaDNSmess.cfm

As you can imagine, these mail services will not tell you how they configure their spam filters. That would allow spammers to bypass them.
 
  


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