From what I gather, your web server's sendmail is intercepting the the email instead of routing it to the correct mail server because it has the same domain name as the recipient address? You need to manually create a rule in the sendmail to override that so it routes all email addressed to "@yourdomain.com" over to the correct external mail server. See the sendmail section of http://www.mail-abuse.com/an_rteoutgoing.html for an idea. It's been a long time since I hacked sendmail.

~Rolan




Mark Armendariz wrote:
Happy 2007, everyone.

I know this isn't directly a php, issue, but I was hoping someone here might have some experience with such a thing.

My client has their site on one server and their their email server at another hosting company. I'm trying to send mail from a php script (using the mail function) on the site.

I know sendmail is working correctly, as I can send email to my own domain as well as to any other I've tried. This only applies to sending email internally.

Sendmail has a recipient check. Basically, it talks to the recipient's server and checks that the user exists before trying to send the message. Unfortunately, since the hosting server has the same domain name as the mail server.

** Here's the php:

$aHeaders = array();
$aHeaders[] = 'From: ' . EMAIL_DONATIONS;
$aHeaders[] = 'X-Mailer: PHP v' . phpversion();

$sSubject = 'New Donation Submitted';
$sMessage = 'A new donation has been submitted through the site.';
mail(EMAIL_DONATIONS, $sSubject, $sMessage, implode("\n", $aHeaders), '-v');



** Here's the verbose output of sendmail (with my domain in place of the client's)
[EMAIL PROTECTED] Connecting to localhost.localdomain. via relay...
220 ss07.shared.server-system.net <http://ss07.shared.server-system.net> ESMTP 
Sendmail 8.12.11.20060308/8.12.11; Thu, 4 Jan 2007 11:09:10 -0800

>>> EHLO laco.org <http://laco.org>
250-ss07.shared.server-system.net <http://250-ss07.shared.server-system.net> Hello 
localhost.localdomain [127.0.0.1 <http://127.0.0.1>
], pleased to meet you
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-8BITMIME
250-SIZE 15000000
250-DSN
250-ETRN
250-AUTH LOGIN PLAIN
250-STARTTLS
250-DELIVERBY
250 HELP
>>> STARTTLS

220 2.0.0 Ready to start TLS
>>> EHLO enobrev.com <http://enobrev.com>
250-ss07.shared.server-system.net <http://250-ss07.shared.server-system.net> 
Hello localhost.localdomain [
127.0.0.1 <http://127.0.0.1>], pleased to meet you
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-8BITMIME
250-SIZE 15000000
250-DSN
250-ETRN
250-AUTH LOGIN PLAIN
250-DELIVERBY
250 HELP
>>> MAIL From:<
[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>> SIZE=300 [EMAIL PROTECTED] 
<mailto:[EMAIL PROTECTED]>
250 2.1.0 <
[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>>... Sender ok
>>> RCPT To:<[EMAIL PROTECTED] <http://enobrev.com>>
>>> DATA

550 5.1.1 <[EMAIL PROTECTED] <http://enobrev.com>>... User unknown
503 5.0.0 Need RCPT (recipient)
>>> RSET
250 2.0.0 Reset state
dead.letter..
. Saved message in dead.letter
Closing connection to localhost.localdomain.
>>> QUIT
221 2.0.0 ss07.shared.server-system.net <http://ss07.shared.server-system.net> 
closing connection


Now, I know for a fact the recipient's email exists on my client's mail server (which is an exchange server). The only thing I can figure is that it's checking the local host for the recipient and not finding it, and hence never sending the email.

Anybody ever run into this before? Is there a switch i can use with php's mail function or sendmail to get around this?

Thanks!!

Mark Armendariz
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