mail (): Avoiding own SpamAssasin-ation

[Boris_Senker]

I have a mail () based form mailer on a website which I am now trying to set up to use iso-8859-2 or UTF-8 encoding to be able to display accented characters.

basic params are

$sendto     = "[e-mail]";		
		  $inquirytype      = $_POST['inquirytype'];
		  $name   = $_POST['name'];
		  $company = $_POST['company'];
		  $telephone = $_POST['telephone'];
		  $email  = $_POST['email'];
		  $inquiry    = $_POST['inquiry'];
		  $mail_header="Return-Path:[e-mail]\n
Content-Transfer-Encoding: 8bit\nContent-Type: text/html; charset=utf-8\r\n";

mail($sendto, "WebForm:", "Inquiry: $inquirytype\n\n$inquiry\nSender: 
$name\n\n$company\nTelephone: $telephone",  "From: $email\n$mail_header");

etc.

Now when Spamassasin which is setup on server gets it, it marks mail as SPAM:

 0.3 NO_REAL_NAME           From: does not include a real name
 0.1 MIME_HTML_ONLY         BODY: Message only has text/html MIME parts
 3.3 MSGID_FROM_MTA_SHORT   Message-Id was added by a relay
 1.7 HTML_MIME_NO_HTML_TAG  HTML-only message, but there is no HTML tag

NO_REAL_NAME: It actually had a real name, but it was using special characters.

MIME_HTML_ONLY: I don't get this...

MSGID_FROM_MTA_SHORT: Neither I understand this...

HTML_MIME_NO_HTML_TAG: If I set to text/plain, I can't seem to specify the proper encoding so only garbage characters are displayed. Is there a way for me to set up text/plain and retain encoding and special characters?

(I am not sure if it is important to mention that page containing form is included into the main page containing iso-8859-2 charset - form page itself contains no encoding.)

What did I do wrong here? How should it be set up right?

[Merve]

Are you sending HTML tags in your e-mails without using headers properly to specify that an HTML e-mail is being sent?

[Boris_Senker]

I don't think I am sending any HTML tags...

Example:

if(!isset($_POST['ime']) || strlen($_POST['ime']) <= 0)
	    {
            echo 'Gre&#353;ka: Morate unijeti ime i prezime.<br>';
            exit();
        }
		if(!isset($_POST['tvrtka']) || strlen($_POST['tvrtka']) <= 0)
	    {
            echo 'Gre&#353;ka: Morate unijeti tvrtku.<br>';
            exit();

$mail_header="Return-Path:[e-mail]\n
Content-Transfer-Encoding: 8bit\nContent-Type: text/html; charset=iso-8859-2\r\n";

etc...

[code=php]
if($_POST['vrsta'] == "Opći upit")
		{		
		  $sendto     = "[e-mail]";		
		  $vrsta      = $_POST['vrsta'];
		  $ime   = $_POST['ime'];
		  $tvrtka = $_POST['tvrtka'];
		  $telefon = $_POST['telefon'];
		  $email  = $_POST['email'];
		  $upit    = $_POST['upit'];

etc...

$mail_header="Return-Path:[e-mail]\n
Content-Transfer-Encoding: 8bit\nContent-Type: text/html; charset=iso-8859-2\r\n";

mail($sendto, "WebForm:", "Upit: $vrsta\n\n$upit\n
Pošiljatelj: $ime\n\n$tvrtka\nTelefon: $telefon",  "From: $email\n$mail_header");

mail($sendto, "WebForm:", "Upit: $vrsta\n\n$upit\n
Pošiljatelj: $ime\n\n$tvrtka\nTelefon: $telefon",  "From: $email\n$mail_header")

How could I avoid at least a relay issue - it scores 3.3 here?

I mean I could setup spamassasin's scores and whitelist feature on my host, but most of the people don't have the possibility to adjust spamassasin's settings in their hosting control panels, and I think this could be well controlled with PHP but don't know how...