I also found something like mailgrid, mailgun and such, but it seems require PHP code modification to achieve the goal which is I am incapable of. What other thing troubles me is this line:Īnd orignal mail shows this line: spf=neutral (: is neither permitted nor denied by. However, before editing, there was 3 or 4 lines showing true IP, but with mod i found, it downs to 1. I google'd around, find something about modify postfix, /etc/postfix/main.cf, header_check, master.cf and something like that I have Opencart in my server, so it has to send mail, when client make order and such.Īnd, the mail header contains server IP. So I use Cloudflare to hide my web server ip, I set up mail into different provider. Hi, as we know, hiding true server IP is a necessary measure to ensure server's security. How to hide IP in mail header and google SPF?
