PHP Sendmail not Working to External Addresses

[joelrob]

We have a PHP script utilizing sendmail to send e-mails to internal and external e-mail addresses. The script worked fine with Exchange 2003. Now that we've implemented Exchange 2007, the script can still send mail to the internal addresses, local.user@mydomain.com, but can't sent to any external addresses remote.user@msn.com.

Anyone else run into the same thing and found a fix?

Thanks in advance.

 

[58sniper]

Define "can't".

What's the error? What do the event logs say? What do the SMTP logs say?

Have you granted access in 2007 for the machine running the script?

Pat Richard MVP

 

[Zelandakh]

does it send via Exchange or direct?

 

[joelrob]

The error on the webpage with the script is:

Mailer Error: Language string failed to load: recipients_failed{external.email@msn.com}

Nothing in the event logs from Exchange server. The machine has not been granted access because the script uses SMTP authentication with an AD user name/password.

The script is running on a Windows 2003 server with PHP and Apache. The mail server it's sending to is on Windows 2003 server with Exchange 2007.

 

[Zelandakh]

exchange 2007 needs to be told to allow that box to relay / use authenticated users for relaying.

 

[joelrob]

I've added relay for the server, now I get the same error, but instead of the recipient e-mail address, the sending e-mail address is in the error.

 

[joelrob]

Mailer Error: Language string failed to load: from_failed{internal.email@localdomain.com}

 

[xmsre]

Did you set it on the revceive connector?

http://msexchangeteam.com/archive/2006/12/28/432013.aspx

 

[joelrob]

Yes, it is set on the receive connector.