SMTP Settings not working in mantis 2.27.0

[pooja]

Hi all.. I set up SMTP configuration for mantis app in version 2.26.1 it was working until 2.26.6 when it was updated to 2.27.0 my SMTP configuration was not working anymore I configured the same settings and try to send emails the emails are not triggering and was not received in inbox and we are using zoho smtp server.The email configuration is as follows

# --- Email Configuration ---
$g_phpMailer_method = PHPMAILER_METHOD_MAIL;
$g_smtp_host = 'smtppro.zoho.com';
$g_smtp_username = 'zoho email id';
$g_smtp_password = 'zoho app password';
$g_webmaster_email = 'webmaster@example.com';
$g_from_email = 'mantisbt@example.com'; # the "From: " field in emails
$g_return_path_email = 'admin@example.com'; # the return address for bounced mail
$g_administrator_email = 'administrator@gmail.com';
$g_from_name = 'Mantis Bug Tracker';
$g_email_receive_own = ON;
$g_email_send_using_cronjob = OFF;
please help me out if there any misconfiguration