PEAR Mail unable to connect to Gmail SMTP, failed to connect to socket

Question

Facts

I am using PEAR Mail, I want to use gmail SMTP to send a mail. I have Apache/2.4.27 (Win64) PHP/7.2.0beta3, PEAR 1.10.15, Mail 1.4.1, Net_SMTP 1.8.0, Net_Socket 1.2.2.

I went to php.ini and added extension = php_openssl.dll. The error.log gives no ssl-related errors.

Here is the code

require_once "Mail.php";

$from = '<[email protected]>';
$to = '<[email protected]>';
$subject = 'Hi!';
$body = "Hi,\n\nHow are you?";

$headers = array(
    'From' => $from,
    'To' => $to,
    'Subject' => $subject
);

$smtp = Mail::factory('smtp', array(
        'host' => 'ssl://smtp.gmail.com',
        'port' => '465',
        'auth' => true,
        'username' => '[email protected]',
        'password' => 'mypassword'
    ));

$mail = $smtp->send($to, $headers, $body);

if (PEAR::isError($mail)) {
    echo('<p>' . $mail->getMessage() . '</p>');
} else {
    echo('<p>Message successfully sent!</p>');
}

The problem

I get this error

Failed to connect to ssl://smtp.gmail.com:465 [SMTP: Failed to connect socket: fsockopen(): unable to connect to ssl://smtp.gmail.com:465 (Unknown error) (code: -1, response: )]

and I have no clue what to do, I Googled but I got more confused.

Please advice on how to fix this. Thank you

Update

Following symcbean's instructions I got the following results :

bool(true) 

array(5) { 
[0]=> string(31) "alt3.gmail-smtp-in.l.google.com" 
[1]=> string(26) "gmail-smtp-in.l.google.com" 
[2]=> string(31) "alt4.gmail-smtp-in.l.google.com" 
[3]=> string(31) "alt1.gmail-smtp-in.l.google.com" 
[4]=> string(31) "alt2.gmail-smtp-in.l.google.com" } 
IPV4 address = 64.233.188.27

If you've got this far without errors then problem is with your SSL config

Check you've got your cacerts deployed in one of the following locations
default_cert_file = C:\Program Files\Common Files\SSL/cert.pem
default_cert_file_env = SSL_CERT_FILE
default_cert_dir = C:\Program Files\Common Files\SSL/certs
default_cert_dir_env = SSL_CERT_DIR
default_private_dir = C:\Program Files\Common Files\SSL/private
default_default_cert_area = C:\Program Files\Common Files\SSL
ini_cafile = 
ini_capath = 

If all good so far, then this bit should work....
fsockopen 
Warning: fsockopen(): SSL operation failed with code 1. OpenSSL Error messages: error:1416F086:SSL routines:tls_process_server_certificate:certificate verify failed in C:\Apache24\htdocs\phptest2.php on line 28

Warning: fsockopen(): Failed to enable crypto in C:\Apache24\htdocs\phptest2.php on line 28

Warning: fsockopen(): unable to connect to ssl://smtp.gmail.com:465 (Unknown error) in C:\Apache24\htdocs\phptest2.php on line 28
bool(false) int(0) string(0) "" 

Line 28 is this line var_dump(fsockopen("ssl://smtp.gmail.com", 465, $errno, $errstr, 3.0));

Thanks again

Update #2

I googled just "fsockopen(): SSL operation failed with code 1." of the first warning.

End up here . I changed the mail port of the AVG, like the answer. symcbean's code run with no errors, but my code replied with mail error : authentication failure [SMTP: Invalid response code received from server (code: 534, response: 5.7.14 Please log in via your web browser and 5.7.14 then try again. 5.7.14 Learn more at 5.7.14 https://support.google.com/mail/answer/78754 c1sm1243434wre.84 - gsmtp)]

So I googled code: 534, response: 5.7.14 and end-up here, followed the instructions of the first answer by emgh3i, enabled less secured connections and allowed access to my google account

And its working perfectly now.

Answer 1

The "Use the Gmail SMTP Server" section of this guide says you need to enable "Less secure apps".