I have a situation where an email from Comcast alert services is getting rejected, as the email comes in to my postfix server it gets forward to my phone and the service provider looks up SPF for my domain and rejects the email as it should. I wanted to rewrite the address to remove the @comcast.com and replace with @mydomain. I tested this with sender_canonical and it works for sending email from my server as expected but I need a way to change the email address as it comes in from the remote SMTP client to my postfix server. I think I got it working with header checks but it seems like there should be a better solution. Can anyone recommend another way to change the sender's email address, I tried recipient_canonical but that did not work, not sure if its because it did not configure local_header_rewrite_clients <http://www.postfix.org/postconf.5.html#local_header_rewrite_clients> .
Thanks, paul
