Exim headers

[sparek-3]

Is there any way to prevent Exim from overwriting headers of e-mails that are sent through a PHP script. A user wants to specify a Return-path in their script, but the server always changes this to user@hostname . Is there anyway to allow this?

[chirpy]

A user wants to specify a Return-path in their script, but the server always changes this to user@hostname

I don't believe you can through PHP unless you pipe to the exim binary directly rather than using the mail() call.

It is worth noting that the behaviour of exim (to use username@hostname) is completely correct and the return-path: field is only meant to be used for manual mail tracking. From: and Reply-To: headers are for mail routing.