How I set the php mail function for multiple domains correctly?
Sometime ago I install the mail (php function), but when I tried to send the email by any HTML form the response was too slow. I solved the problem editting the /etc/hosts file with a correct FQDN.
I am using multiple domains (Virtual Host), and this week when I was installing another site I checked that the mails is sending slow again. How can i fix it again?
My /etc/hosts are:
127.0.0.1 localhost.localdomain localhost
127.0.1.1 rioth.maindomain.me maindomain
18.104.22.168 rioth.maindomain.me maindomain
22.214.171.124 mail.anotherdomain.com mail
126.96.36.199 mail.otherdomain.co mail