I\'m trying to send an HTML message while using SMTP authentication to Gmail in PHP. Here is the script that I am using:
require_once \"Mail.php\";
require_o
I had this issue and via debugging managed to get all kinds of different errors (below). Strangest thing is that it completely stopped working on about 11/2/2017. I didn't do any updates. Previously it would randomly work so I put in a retry and it always succeeded < 5 tries, until the 2nd. Strange.
Failed to connect to ssl://smtp.gmail.com:465 [SMTP: Invalid response code received from server (code: -1, response: )]
fsockopen(): Failed to enable crypto
fsockopen(): unable to connect to ssl://smtp.gmail.com:465 (Unknown error)
SSL operation failed with code 1. OpenSSL Error messages: error:14090086:SSL routines:ssl3_get_server_certificate:certificate verify failed
(and so on)
Another used posted this troubleshooting step that helped me get more errors so I could Google more what could be the cause:
$result = fsockopen('ssl://smtp.gmail.com', 465, $error_no,
$error_message, 5);
if($result === false) {
echo "error no:
$error_no error message: $error_message"; echo print_r($result,true);
}else{
echo 'success\n\n';
}
My fix was to add a CA bundle file, since apparantly PHP couldn't verify the cert of Google: