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$this->load->library('email') version codeigniter 3.1.10,

i have this problem, when I add this code:

$configEmail = array(

'protocol' => 'mail',
'smtp_host' => 'mail.**********.com',
'smtp_port' => 25,
'smtp_user' => '[email protected]*******.com',
'smtp_pass' => *******,
'mailtype' => 'html',
'charset' => 'utf-8',
'newline' => "\r\n"


$this->email->from('[email protected]*******.com', '****.');

the server sends me the next warning

"Service Unavailable

The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.
Additionally, a 503 Service Unavailable error was encountered while trying to use an ErrorDocument to handle the request."

The problem is my code or I have to do something on the server?

formerly, after the problem I use 


and helping me to solve the problem.

thanks and regards

Try changing the 'protocol' => 'mail' to 'protocol' => 'smtp' and also try to verify that the smtp server host is correct.
It may also be that you are informing the host of an SSL connection. If you want this type of connection use 'smtp_crypto' => 'ssl' and 'smtp_port' => 'matching port'.


You might want to see if mail works on your server (check with the hosting company) and if PHP is correctly configured to send mail (PHP ini).

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