I have added contact form for my Joomla 3.4.5 web site's contact page. All my mail settings in Configuration Manager are correct... But after submitting the message as a test intention, I get e-mail from Gmail that says
it has blocked a sign-in attempt by an application which does not complies with modern security standards
As a result, I get
SMTP connect() failed.
SMTP connect() failed.
My configuration.php file contains those lines in the following:
...
public $mailonline = '1';
public $mailer = 'smtp';
public $mailfrom = 'my_gmail_account@gmail.com';
public $fromname = 'FROM NAME';
public $sendmail = '/usr/sbin/sendmail';
public $smtpauth = '1';
public $smtpuser = 'my_gmail_account@gmail.com';
public $smtppass = 'my_gmail_account_password';
public $smtphost = 'smtp.gmail.com';
public $smtpsecure = 'ssl';
public $smtpport = '465';
...
PS: Authentication Gmail Plug-in is enabled.