SMTP Error

I have HCL setup and the live chat part is working great. When I am offline and someone tries to send an email, this is the error displayed in the browser.

Code:

SMTP -> get_lines(): $data was "" SMTP -> get_lines(): $str is "220 mailserver.mydomain.com ESMTP Postfix (Debian/GNU) " SMTP -> get_lines(): $data is "220 mailserver.mydomain.com ESMTP Postfix (Debian/GNU) " SMTP -> FROM SERVER: 220 mailserver.mydomain.com ESMTP Postfix (Debian/GNU) SMTP -> get_lines(): $data was "" SMTP -> get_lines(): $str is "250-mailserver.mydomain.com " SMTP -> get_lines(): $data is "250-mailserver.mydomain.com " SMTP -> get_lines(): $data was "250-mailserver.mydomain.com " SMTP -> get_lines(): $str is "250-PIPELINING " SMTP -> get_lines(): $data is "250-mailserver.mydomain.com 250-PIPELINING " SMTP -> get_lines(): $data was "250-mailserver.mydomain.com 250-PIPELINING " SMTP -> get_lines(): $str is "250-SIZE 10240000 " SMTP -> get_lines(): $data is "250-mailserver.mydomain.com 250-PIPELINING 250-SIZE 10240000 " SMTP -> get_lines(): $data was "250-mailserver.mydomain.com 250-PIPELINING 250-SIZE 10240000 " SMTP -> get_lines(): $str is "250-VRFY " SMTP -> get_lines(): $data is "250-mailserver.mydomain.com 250-PIPELINING 250-SIZE 10240000 250-VRFY " SMTP -> get_lines(): $data was "250-mailserver.mydomain.com 250-PIPELINING 250-SIZE 10240000 250-VRFY " SMTP -> get_lines(): $str is "250-ETRN " SMTP -> get_lines(): $data is "250-mailserver.mydomain.com 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN " SMTP -> get_lines(): $data was "250-mailserver.mydomain.com 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN " SMTP -> get_lines(): $str is "250-STARTTLS " SMTP -> get_lines(): $data is "250-mailserver.mydomain.com 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-STARTTLS " SMTP -> get_lines(): $data was "250-mailserver.mydomain.com 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-STARTTLS " SMTP -> get_lines(): $str is "250-AUTH LOGIN PLAIN " SMTP -> get_lines(): $data is "250-mailserver.mydomain.com 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-STARTTLS 250-AUTH LOGIN PLAIN " SMTP -> get_lines(): $data was "250-mailserver.mydomain.com 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-STARTTLS 250-AUTH LOGIN PLAIN " SMTP -> get_lines(): $str is "250-AUTH=LOGIN PLAIN " SMTP -> get_lines(): $data is "250-mailserver.mydomain.com 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-STARTTLS 250-AUTH LOGIN PLAIN 250-AUTH=LOGIN PLAIN " SMTP -> get_lines(): $data was "250-mailserver.mydomain.com 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-STARTTLS 250-AUTH LOGIN PLAIN 250-AUTH=LOGIN PLAIN " SMTP -> get_lines(): $str is "250-ENHANCEDSTATUSCODES " SMTP -> get_lines(): $data is "250-mailserver.mydomain.com 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-STARTTLS 250-AUTH LOGIN PLAIN 250-AUTH=LOGIN PLAIN 250-ENHANCEDSTATUSCODES " SMTP -> get_lines(): $data was "250-mailserver.mydomain.com 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-STARTTLS 250-AUTH LOGIN PLAIN 250-AUTH=LOGIN PLAIN 250-ENHANCEDSTATUSCODES " SMTP -> get_lines(): $str is "250-8BITMIME " SMTP -> get_lines(): $data is "250-mailserver.mydomain.com 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-STARTTLS 250-AUTH LOGIN PLAIN 250-AUTH=LOGIN PLAIN 250-ENHANCEDSTATUSCODES 250-8BITMIME " SMTP -> get_lines(): $data was "250-mailserver.mydomain.com 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-STARTTLS 250-AUTH LOGIN PLAIN 250-AUTH=LOGIN PLAIN 250-ENHANCEDSTATUSCODES 250-8BITMIME " SMTP -> get_lines(): $str is "250 DSN " SMTP -> get_lines(): $data is "250-mailserver.mydomain.com 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-STARTTLS 250-AUTH LOGIN PLAIN 250-AUTH=LOGIN PLAIN 250-ENHANCEDSTATUSCODES 250-8BITMIME 250 DSN " SMTP -> FROM SERVER: 250-mailserver.mydomain.com 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-STARTTLS 250-AUTH LOGIN PLAIN 250-AUTH=LOGIN PLAIN 250-ENHANCEDSTATUSCODES 250-8BITMIME 250 DSN SMTP -> get_lines(): $data was "" SMTP -> get_lines(): $str is "334 VXNlcm5hbWU6 " SMTP -> get_lines(): $data is "334 VXNlcm5hbWU6 " SMTP -> get_lines(): $data was "" SMTP -> get_lines(): $str is "334 UGFzc3dvcmQ6 " SMTP -> get_lines(): $data is "334 UGFzc3dvcmQ6 " SMTP -> get_lines(): $data was "" SMTP -> get_lines(): $str is "235 2.0.0 Authentication successful " SMTP -> get_lines(): $data is "235 2.0.0 Authentication successful " SMTP -> get_lines(): $data was "" SMTP -> get_lines(): $str is "250 2.1.0 Ok " SMTP -> get_lines(): $data is "250 2.1.0 Ok " SMTP -> FROM SERVER: 250 2.1.0 Ok SMTP -> get_lines(): $data was "" SMTP -> get_lines(): $str is "250 2.1.5 Ok " SMTP -> get_lines(): $data is "250 2.1.5 Ok " SMTP -> FROM SERVER: 250 2.1.5 Ok SMTP -> get_lines(): $data was "" SMTP -> get_lines(): $str is "354 End data with . " SMTP -> get_lines(): $data is "354 End data with . " SMTP -> FROM SERVER: 354 End data with . SMTP -> get_lines(): $data was "" SMTP -> get_lines(): $str is "250 2.0.0 Ok: queued as 09A2F22DDEB " SMTP -> get_lines(): $data is "250 2.0.0 Ok: queued as 09A2F22DDEB " SMTP -> FROM SERVER: 250 2.0.0 Ok: queued as 09A2F22DDEB SMTP -> get_lines(): $data was "" SMTP -> get_lines(): $str is "221 2.0.0 Bye " SMTP -> get_lines(): $data is "221 2.0.0 Bye " SMTP -> FROM SERVER: 221 2.0.0 Bye