Okay, I can now receive emails from the outside world. My problem now is I can't send emails to the outside world.
At present I'm testing sending emails using Mozilla Thunderbird and this error occurs when I send the email:
"An error occured while sending mail. The mail server responded: <email@example.com>: Relay access denied. Please verify that your email address is correct in your Mail preferences and try again."
Before, I have nothing on the mysql-virtual_transports.cf. When the error occured, I added the following entries on the said configuration file:
* smtp:[203.177.73.xxx] "the ip of the original mail server"
Then I restarted postfix: /etc/init.d/postfix restart
I again tried sending an email but the same error occurs.
I think this problem is similar to Rocky's problem.
One more thing, can you possibly give a suggestion as to what webmail program I could use for this type of mail server, and if there is a tutorial document wherein I can refer to?
Thanks in advance.