our developer team is using the bellow mailer to sent email outside.
and they use Windows server as apache and from php.ini, we have defined "smtp " to another server
and return path for email is working fine.
but the same script , when they trying to run a linux base apache server ( centos, sendmail)
the script cant change the return path of the email .
can any one tell me .. why is that ??
or is there any extra option they need to use in this script
note : this quesiton is only for this mailer. I know there are other mailer (phpmailer), but i need solution for this mailer only.