PHPMailer Hangs on Send

Question

I had successfully setup a web app using WAMPSERVER on a desktop used by a few people internally, this used PHPMailer to an internal SMTP server without encryption or authentication and it worked.

That desktop crashed and I've migrated to a "new" desktop. I had an SVN setup so I was even using most of the same files and config. One difference which might matter is that the old desktop was 64-bit and the new is 32-bit. This means I'm using different versions of WAMPSERVER.

The mailer just hangs. I don't get a PHP error or a PHP timeout. I just never reach the end of my script. The crazy part about this is that it works with authentication, ssl, and gmail. It just won't work with the extra simple case I need.

This works:

<?php
require('class.phpmailer.php');
$mail=new PHPMailer();
$mail->ISSMTP();
$mail->Host='smtp.gmail.com';
$mail->Subject='test subj';
$mail->Body='the body email test';
$mail->SMTPDebug  = 1;                     // enables SMTP debug information (for testing)
$mail->SMTPAuth   = true;                  // enable SMTP authentication
$mail->SMTPSecure = "ssl";                 // sets the prefix to the servier
$mail->Host       = "smtp.gmail.com";      // sets GMAIL as the SMTP server
$mail->Port       = 465;                   // set the SMTP port for the GMAIL server
$mail->Username   = "myemail@gmail.com";  // GMAIL username
$mail->Password   = "mypassword";            // GMAIL password
$mail->AddAddress('toemail@supersecret.com', 'John Doe');
$mail->SetFrom('something@gmail.com', 'First Last');
$mail->Send();
?>

this used to, but now does not:

<?php
require('class.phpmailer.php');
$mail=new PHPMailer();
$mail->ISSMTP();
$mail->Host='smtp.internal.com';
$mail->Subject='test subj';
$mail->Body='the body email test';
$mail->SMTPDebug  = 1;                     // enables SMTP debug information (for testing)
$mail->Port       = 25;                   // set the SMTP port for the GMAIL server
$mail->AddAddress('myaddress@somewhere.com', 'John Doe');
$mail->SetFrom('someaddress@mightbereal.com', 'First Last');
$mail->Send();
?>

The only thing I get from debug is

CLIENT -> SMTP: EHLO thedesktophostname

No errors display on the page and nothing in the apache log, where I normally get PHP errors, if they don't display.

I can telnet to the host from the desktop on port 25 and even type in the EHLO command and get a good response from the server.

I don't remember having this issue before, although it's possibly I've already solved it once. I couldn't find anything that helped here or on The Google.

Please help. Thanks.

Answer 1

劫持帖子说我有同样的问题，但已将端口设置为 465 没有将 SMTPSecure 设置为 'ssl' 在示例中，它默认设置了 TLS

Answer 2

遗憾的是，这可能永远不会帮助其他有同样问题的人，但我只需将端口更改为 465 就可以让一切正常工作。

Answer 3

Eventually found solution for my configuration.
Just add ssl:// to smtp.google.com
$mail->Host = 'ssl://smtp.gmail.com';

Answer 4

I had the same issue. Nothing displays after the send method. I realized that the encryption was wrong, I did use SMTPS

$mail->SMTPSecure = PHPMailer::ENCRYPTION_STARTTLS;
// Enable TLS encryption, `PHPMailer::ENCRYPTION_SMTPS` also accepted

Answer 5

If you have a server hosted in Hostgator (shared hosting), this is what solved for me:
$mail->SMTPSecure = PHPMailer::ENCRYPTION_SMTPS;
(even though the official example in PHPMailer suggests using ENCRYPTION_STARTTLS )