php mail bounces?

[blogger3]

Email messages sent from my PHP pages sometimes bounce back with an error "550 Administrative Prohibition".
I am having same issues using either Postfix or Sendmail, but only for messages sent from PHP scripts.

I believe that some recipients' email servers do not like the headers generated or not generated by PHP mail() function. But is there a way to fix this?

[drew010]

the php mail function doesn't add any headers besides the ones you send into it. its probably the mail transfer agent that is adding additional headers to outgoing messages. if you are root, you can edit the conf files for the program, which specify what headers to tack on to different types of messages.