[thincom2000]

I was getting a MySQL timeout error when sending only - count it - 1 email via a Report Post form. Fixed it by replacing the mail_send plugin. This edit also makes it possible to use this mod with no file edits:

if ($this->registry->options['usemailqueue'] AND get_class($this) == 'vB_Mail')
{
	$qmail =& vB_QueueMail::fetch_instance();
	$qmail->toemail = $this->toemail;
	$qmail->subject = $this->subject;
	$qmail->message = $this->message;
	$qmail->headers = $this->headers;
	$qmail->fromemail = $this->fromemail;
	$qmail->delimiter = $this->delimiter;
	$qmail->registry = $this->registry;
	$qmail->debug = $this->debug;
	$qmail->log = $this->log;
	$qmail->send();
	unset($qmail);

	$this->toemail = '';
}
else
{
	$delay = intval($vbulletin->options['cmqdelay']);
	if ($delay > 0 AND $delay < 10)
	{
		sleep($delay);
	}
}

Also create a plugin at hook global_shutdown with the following code:

$vbulletin->mailqueue = null;