HTML email and Exchange 2000

gonad

has anyone had any problems sending an HTML email from a PHP script running on a Linux server through an Exchange 2000 server?

for instance, I have a Linux server (mandrake8.1) running Postfix. I have Postfix configured to deliver to my Exchange 2000 server, and then on to a user on my network.

The email gets delivered to the user, but it's not in HTML format. I have verified the settings on the Exchange 2000 server and have tested the settings to make sure Exchange can receive an HTML email and it works, but not when it comes from Linux.

Somehow, I think there is a problem sending the headers from PHP on Linux to an Exchange 2000 server. It's like Exchange 2000 can't accept/interperet the headers, so it sends the email in plain text.

Is anyone using Linux/PHP and Exchange 2000 on their network who can test/verify this for me?

Thanks for your help.

Frag

SMTP is a protocol and doesn't change from server to server (well it's not supposed to and servers that do usually end up dead in the water as its THE standard protocol for transfering email)

Have you tried to send the mail to someone local to the linux box and used POP3 or something to retreive it and made sure it wasn't the headers you where using that were not correct?

I work for a chain store that we send emails to in html format. When I first tried it heh I failed as I didn't get the header right.

Of course we don't use Exchange (Virus Propagation Tool) in our environment. 🙂

Ok, I shouldn't have made that crack but I enjoyed it.

Frag

gonad

I agree with you on the VPT, that's for sure.

I've been using this same PHP script for the last 6 months without any problems, however, it was with an Exchange 5.5 server. The problem started after migrating to Exchange 2000 server.

I brought my old Exchange 5.5 server back online and was able to test the headers and it worked fine. I know they aren't the problem.

I believe it is because Exchange 2000 isn't interpreting them correctly, or something.

Any other ideas? 🙂

Frag

I don't know I've never used exchange. Have you searched microsoft technet?

Frag

gonad

Yeah, I've searched MS and just about everywhere else. I've been trying to research this problem for the past 4 weeks but haven't found anyone (yet) who is able to test this on their network or to verify it is a problem with the headers and Exchange.

Thanks for your help. 🙂

gonad

I found the fix for this problem. Thanks to Mincer for giving me the idea, however, the \r\n at the end of the header fields should be replaced with JUST the \n ONLY.

This will work with Exchange 2000.

	$headers  = "MIME-Version: 1.0\n";
	$headers .= "Content-Type: text/html; charset=iso-8859-1\n";
	$headers .= "From: HELPDESK\n";
	$headers .= "X-Sender: mail.user.com\n";
	$headers .= "X-Mailer: PHP\n"; //mailer
	$headers .= "X-Priority: 3\n"; //1 UrgentMessage, 3 Normal