Email Sending errors

[jacobdu215]

Simple Gmail Email Setup, however error log is:

2015-09-23 4:24:41 - Error: RCPT TO not accepted from server!
2015-09-23 4:24:41 - Error: DATA not accepted from server!
2015-09-23 4:24:41 - Error: DATA not accepted from server!
2015-09-23 4:24:41 - Error: QUIT not accepted from server!
2015-09-23 4:26:33 - Error: Password not accepted from server!
2015-09-23 4:26:33 - Error: MAIL FROM not accepted from server!
2015-09-23 4:26:33 - Error: RCPT TO not accepted from server!
2015-09-23 4:26:33 - Error: DATA not accepted from server!
2015-09-23 4:26:33 - Error: DATA not accepted from server!
2015-09-23 4:26:33 - Error: QUIT not accepted from server!
2015-09-23 4:26:56 - Error: Password not accepted from server!
2015-09-23 4:26:56 - Error: MAIL FROM not accepted from server!
2015-09-23 4:26:56 - Error: RCPT TO not accepted from server!
2015-09-23 4:26:56 - Error: DATA not accepted from server!
2015-09-23 4:26:56 - Error: DATA not accepted from server!
2015-09-23 4:26:56 - Error: QUIT not accepted from server!
2015-09-23 4:28:13 - Error: Password not accepted from server!
2015-09-23 4:28:13 - Error: MAIL FROM not accepted from server!
2015-09-23 4:28:13 - Error: RCPT TO not accepted from server!
2015-09-23 4:28:13 - Error: DATA not accepted from server!
2015-09-23 4:28:13 - Error: DATA not accepted from server!
2015-09-23 4:28:13 - Error: QUIT not accepted from server!
2015-09-23 4:28:58 - Error: Password not accepted from server!
2015-09-23 4:28:58 - Error: MAIL FROM not accepted from server!
2015-09-23 4:28:58 - Error: RCPT TO not accepted from server!
2015-09-23 4:28:59 - Error: DATA not accepted from server!
2015-09-23 4:28:59 - Error: DATA not accepted from server!
2015-09-23 4:28:59 - Error: QUIT not accepted from server!
2015-09-23 4:31:42 - Error: Password not accepted from server!
2015-09-23 4:31:42 - Error: MAIL FROM not accepted from server!
2015-09-23 4:31:42 - Error: RCPT TO not accepted from server!
2015-09-23 4:31:43 - Error: DATA not accepted from server!
2015-09-23 4:31:43 - Error: DATA not accepted from server!

and my email setup:

Mail Protocol: SMTP

SMTP Host: ssl://smtp.gmail.com
SMTP Username:e******@gmail.com
SMTP Password: ******
SMTP Port: 465

[Basara]

2015-09-23 4:24:41 - Error: RCPT TO not accepted from server!
2015-09-23 4:24:41 - Error: DATA not accepted from server!
2015-09-23 4:24:41 - Error: DATA not accepted from server!
2015-09-23 4:24:41 - Error: QUIT not accepted from server!

not accepted from server mean something wrong with your server configurations. Please contact with your hosting support to resolve server issue

[jacobdu215]

I have it on my own server, how can I change that to allow that (have cpanel installed)