Return-path email address not working
I have an email set up with both ReplyTo and ReturnPath set, however my client is getting bouncebacks coming to the"From" email address. The code in the Email is:
$Email->From = "Client Name <email@example.com>";
$Email->ReplyTo = "firstname.lastname@example.org";
$Email->ReturnPath = "email@example.com";
Bouncebacks from invalid email addresses are being sent to firstname.lastname@example.org. Any idea why this might be and if there's anything I can do to prevent it? I already have reCaptcha in place.