Multi site smtp setting

My multi site user registration did not receive verification letter.
I installed Global SMTP in network and installed SMTP by BestWebSoft plugin too.
Here is my Global SMTP setting :
wp-config:

define('GLOBAL_SMTP_HOST','localhost');
define('GLOBAL_SMTP_USER','');
define('GLOBAL_SMTP_PASSWORD','');

plugin file:

'GLOBAL_SMTP_PORT'      => 25,
'GLOBAL_SMTP_SECURE'    => 'none',
'GLOBAL_SMTP_TIMEOUT'   => 10,
'GLOBAL_SMTP_FROM'      => 'wordpress@www.adword.vip',
'GLOBAL_SMTP_FROM_NAME' => 'whoops',
'GLOBAL_SMTP_AUTH_TYPE' => 'PLAIN',

In SMTP plugin send test mail show Success, but I didn't receive test mail.

Thanks for help.