Someone asked what was being sent. The email is being sent to a mailbox collector of bounces at the Gmail level. The email contains a VERP address of the original sender. We perform automated bounce processing for all email that make it to the bounce address at the Gmail level. These bounces come from our Postfix server and from many ISPs across the Internet. Please note that all of our MX Records point to Google. Our Postfix server is only accessible from a private network shared by our virtual machines -- it has no inbound exposure to the Internet.
I choose to create an SPF entry in DNS for each of our Postfix Transports based on the feedback here. This is kind of awkward given the number of SPF records we have in our zone now -- but I believe it will work. Thanks, Greg _______________________________________________ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to postfix-users-le...@postfix.org
