I want to make an email forwarder similar to cPanel's, where I have a database of email addresses, and where they should forward to, and I set a catch-all to pipe to my script.

I have completed this script, however, I would like to make the "To:" field in the header show the address it was sent to, rather than who is was being delivered to. For example, the email was sent to user001@mydomain.com, and the script forwards it to me@gmail.com. How can I make PHP send mail to me@gmail.com, but still show user001@mydomain.com in the headers, like cPanel does?

I tried BCCing too, but that means that the message comes back to the server, since the "to" is still @mydomain. I could add a X-Processed header, but it seems inefficient to process every message twice.

    try leaving out the To entirely and adding a BCC with where you want it delivered. I believe this will create a default behaviour.

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