Is mail feature in v11.28 working with Gmail?

[Ringoinmel]

I put all SMTP settings to \chamilo\app\config\mail.conf.php and try to send mail when I give the comments to the assignment as below.

But the student haven't receive the comments by email. Here is what the settings I put it.

$platform_email['SMTP_FROM_EMAIL'] = '[email protected]'; //See the function __construct() in main/inc/lib/notification.lib.php for more details on how the SMTP FROM email is defined and what to indicate here if needed to override users configuration
$platform_email['SMTP_FROM_NAME'] = 'Summit Learning';
$platform_email['SMTP_HOST'] = 'smtp.gmail.com'; // If using SMTP use the domain name example: mywebmail.example.net
$platform_email['SMTP_PORT'] = 587;
$platform_email['SMTP_MAILER'] = 'smtp.gmail.com'; // mail, sendmail or smtp (Windows probably only supports smtp)
$platform_email['SMTP_AUTH'] = 1;
$platform_email['SMTP_USER'] = '[email protected]';
$platform_email['SMTP_PASS'] = 'xxxxxxxxxxxxx';
$platform_email['SMTP_CHARSET'] = 'UTF-8';
$platform_email['SMTP_UNIQUE_SENDER'] = 0; // to send all mails from the same user
$platform_email['SMTP_DEBUG'] = 0; // change to 1 to enable smtp debug
$platform_email['SMTP_SECURE'] = 'tls'; // if you're using SSL: ssl; or TLS: tls. (only used if SMTP_AUTH==1)
$platform_email['SMTP_UNIQUE_REPLY_TO'] = 0; // to use AWS SMS service, SMTP_UNIQUE_SENDER and this have to be = 1

[Ringoinmel]

Check error log and it said
24/12/28 11:20:16 << 530-5.7.0 Must issue a STARTTLS command first. For more information, go to530-5.7.0 https://support.google.com/a/answer/3221692 and review RFC 3207530 5.7.0 specifications. d9443c01a7336-219dc9d9927sm140644405ad.134 - gsmtp

Any idea?

[Ringoinmel]

After research, I think it is missing to enable STARTTLS. Anyone know how to add it to mail.conf.php

I try $platform_email['SMTP_STARTTLS'] = 1;

but doesn't work

[Ringoinmel]

Anyone can help?