PHPmailer disclose server IP address, how to hide it?

Question

I\'m using CloudFlare to hide original server IP address (preventing from attacks to the server, DDos...), but when I use PHPmailer on site for sending confirmation e-mails to t

Answer 1

Service PostmarkApp.com is good for this purpose. It is for transactional emails (not for marketing) and it's hiding IP address of the originating server.