mail() Server Error

[jyellis]

I am using php 4.2.2 I believe on a Win2K server. When using mail() it reports a 'Server Error' and refers to the line with the mail() function call whenever I try to send mail to a different domain then the servers domain. It works fine, however, if sending to an email address on the same domain as the server.

Anyone know whats wrong? Coding- or configuration-wise?

[jyellis]

I think I've found the solution. It seems that if you allow 127.0.0.1 to relay mail through your SMTP-server, then in php.ini set your SMTP to localhost, it works.