PHP mail() From and ReplyTo headers are apparently assembled incorrectly

Question

I tried posting this in stackoverflow, but didn't get any (real good) answers, maybe it's more on this side of the aisle.

I have a problem on a server for which the additional headers get ignored.

Code to reproduce:

$toEmail="customer@domain.com";
$subject="subject";
$message="this is a message";
$fromEmail="Customer Service <customerservice@domain.net>";
$replyToEmail="Customer Service <customerservice@domain.net>";
mail("$toEmail", $subject, $message, "FROM: $fromEmail","-f$replyToEmail");
echo "mail sent";

The from address ends up being: customerservice@domain.net.prod3.domain.net

prod3.domain.net is the name of the server, so it concatenates the from address and the machine name.

Server is LAMP running Centos5.

Thanks!

Cam

Answer 1

I suggest you look more closely at your sendmail configuration. It could be doing masquerading for everything received. There is a setting to tack on the name of your domain automatically.
This is not something people can easily comment on without more specifics.

If you are using sendmail as your mailer, you might attach the sendmail.mc file to this note.

Answer 2

Your $replyToEmail should be only the mail address:

$replyToEmail="customerservice@domain.net";

-f is an argument passed to sendmail. More examples, details and discussion you can find here

Answer 3

This can be set in php.ini by giving sendmail_from a value. I've also seen people set sendmail_path with something like "/usr/sbin/sendmail -t -i -fiamnotnobody@server.org".