SMTP

This function will connect wp_mail to your authenticated SMTP server

/**
 * This function will connect wp_mail to your authenticated
 * SMTP server. This improves reliability of wp_mail, and 
 * avoids many potential problems.
 *
 * 
 * Values for constants are set in wp-config.php
 */
function send_smtp_email( $phpmailer ) {
    $phpmailer->isSMTP();
    $phpmailer->Host       = SMTP_HOST;
    $phpmailer->SMTPAuth   = SMTP_AUTH;
    $phpmailer->Port       = SMTP_PORT;
    $phpmailer->Username   = SMTP_USER;
    $phpmailer->Password   = SMTP_PASS;
    $phpmailer->SMTPSecure = SMTP_SECURE;
    $phpmailer->From       = SMTP_FROM;
    $phpmailer->FromName   = SMTP_NAME;
}
add_action( 'phpmailer_init', 'send_smtp_email' );

/**
 * SMTP setting for wp_mail -> wp-config.php
 * 
 */
define( 'SMTP_USER',   'email@email.com' );    // Username to use for SMTP authentication
define( 'SMTP_PASS',   'password' );       // Password to use for SMTP authentication
define( 'SMTP_HOST',   'mail.host.com' );    // The hostname of the mail server
define( 'SMTP_FROM',   'email@email.com' ); // SMTP From email address
define( 'SMTP_NAME',   'Reprazent.me' );    // SMTP From name
define( 'SMTP_PORT',   '465' );                  // SMTP port number - likely to be 25, 465 or 587
define( 'SMTP_SECURE', 'ssl' );                 // Encryption system to use - ssl or tls
define( 'SMTP_AUTH',    true );                 // Use SMTP authentication (true|false)
define( 'SMTP_DEBUG',   0 );                    // for debugging purposes only set to 1 or 2