Я немного разобрался в ситуации, но проблема все еще актуальна. 
Не все сервера игнорируют письма, посланные с php страниц нашего сервера.
Хостер объясняет это так: smtp серверу получателя не нравиться reverse dns нашего сервера. Сейчас (2-а дня назад) они его установили и ждем прописки. Но если бы reverse dns еще не прописалась бы мы бы не могли посылать письма с webmail / cpanel
Я прилагаю 2-а примера ответок. Мне кажется проблема в отсутствии строки “Received: from individual.coolserver.com (mail.bigzur.com [67.19.116.2])” в емайлах посланных с php страниц.
В чем проблема? Как её решить?
I have sent 2 emails to 
bigzur@hitv.ru for test: 
1) from php script – Error 
2) from Webmail(cpanel/neomail) – OK 
I have included logs: 
PHP message - error 
++++++++++++++++++++++++++++++++++
This message was created automatically by mail delivery software. 
A message that you sent could not be delivered to one or more of its 
recipients. This is a permanent error. The following address(es) failed: 
bigzur@hitv.ru 
SMTP error from remote mailer after MAIL FROM:<bigzurc@individual.coolserver.com> SIZE=1581: 
host webmail.hitv.ru [217.66.16.37]: 553 5.1.8 <bigzurc@individual.coolserver.com>... Domain of sender address 
bigzurc@individual.coolserver.com does not exist 
------ This is a copy of the message, including all the headers. ------ 
Return-path: <bigzurc@individual.coolserver.com> 
Received: from bigzurc by individual.coolserver.com with local (Exim 4.43) 
id 1CPHsF-0007tL-7K 
for 
bigzur@hitv.ru; Wed, 03 Nov 2004 03:56:15 -0600 
To: 
bigzur@hitv.ru 
Subject: subject - test php 
From: 
bigzur@mail.ru 
X-Sender: < 
bigzur@mail.ru > 
Content-Type: text/plain; charset=windows-1251 
Message-Id: <E1CPHsF-0007tL-7K@individual.coolserver.com> 
Date: Wed, 03 Nov 2004 03:56:15 -0600 
+++++++++++++++++++++++++++++++++
Webmail message - OK 
++++++++++++++++++++++++++++++++++
Return-Path: <bigzur@bigzur.com> 
Received: from webmail.hitv.ru ([unix socket]) 
by webmail.hitv.ru (Cyrus v2.1.16) with LMTP; Wed, 03 Nov 2004 12:57:51 +0300 
X-Sieve: CMU Sieve 2.2 
Received: from individual.coolserver.com (mail.bigzur.com [67.19.116.2]) 
by webmail.hitv.ru (8.13.1/8.13.1) with ESMTP id iA39vmKr028169 
(version=TLSv1/SSLv3 cipher=DHE-DSS-AES256-SHA bits=256 verify=NO) 
for <bigzur@hitv.ru>; Wed, 3 Nov 2004 12:57:50 +0300 (MSK) 
(envelope-from 
bigzur@bigzur.com) 
Received: from bigzurc by individual.coolserver.com with local (Exim 4.43) 
id 1CPHtk-0007vA-Ae 
for 
bigzur@hitv.ru; Wed, 03 Nov 2004 03:57:48 -0600 
From: "bigzur" <bigzur@bigzur.com> 
To: 
bigzur@hitv.ru 
Subject: test from webmail of bigzur.com 
X-Mailer: NeoMail 1.26 
X-IPAddress: 217.66.22.113 
MIME-Version: 1.0 
Content-Type: text/plain; charset=koi8-r 
Message-Id: <E1CPHtk-0007vA-Ae@individual.coolserver.com> 
Date: Wed, 03 Nov 2004 03:57:48 -0600 
X-AntiAbuse: This header was added to track abuse, please include it with any abuse report 
X-AntiAbuse: Primary Hostname - individual.coolserver.com 
X-AntiAbuse: Original Domain - hitv.ru 
X-AntiAbuse: Originator/Caller UID/GID - [32018 32019] / [47 12] 
X-AntiAbuse: Sender Address Domain - bigzur.com 
X-Source: 
X-Source-Args: 
X-Source-Dir: 
test from webmail of bigzur.com 
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