所以这很奇怪。
我在生成的一封电子邮件中收到了一个451错误，只是导致它的原因是主题行的纯文本部分：s
此主题行通过精细：
$this->email->subject('New task in "'.$data['property_name'].'"');
这会导致451错误：
$this->email->subject('A user has completed their task in "'.$data['property_name'].'"');
作为参考，错误451适用于裸LF(http://cr.yp.to/docs/smtplf.html)。这通常是由于没有在设置中声明行结束规则，或者使用单引号，即"/r/n/"而不是"/r/n"。我的设置是正确的，电子邮件工作正常。
调试器中值得注意的是，较长的行显示为：
Subject: =?utf-8?Q?A_user_has_completed_their_task_in_"TASKNAME
?=
=?utf-8?Q?"?=
而正在工作的似乎是：
Subject: =?utf-8?Q?New_task_in_"TASKNAME"?=
这是CI错误吗？
我认为您混淆了单引号和双引号。尝试：
$this->email->subject('A user has completed their task in '.$data['property_name']);
451错误是从哪里得到的？我看到451被报告为处理中的本地错误。
如果主题字符串超过76个字符，则Email类会对其进行分解：
109 // Line length must not exceed 76 characters, so we adjust for
110 // a space, 7 extra characters =??Q??=, and the charset that we will add to each line
你可以看到它在行动：
function test()
{
echo "<pre>";
print_r($this->_prep_q_encoding('A user had completed their task in "Going to change string to something"'));
}
function _prep_q_encoding($str, $from = FALSE)
{
$this->crlf= "'n";
$this->charset = 'utf-8';
$str = str_replace(array("'r", "'n"), array('', ''), $str);
// Line length must not exceed 76 characters, so we adjust for
// a space, 7 extra characters =??Q??=, and the charset that we will add to each line
$limit = 75 - 7 - strlen($this->charset);
// these special characters must be converted too
$convert = array('_', '=', '?');
if ($from === TRUE)
{
$convert[] = ',';
$convert[] = ';';
}
$output = '';
$temp = '';
for ($i = 0, $length = strlen($str); $i < $length; $i++)
{
// Grab the next character
$char = substr($str, $i, 1);
$ascii = ord($char);
// convert ALL non-printable ASCII characters and our specials
if ($ascii < 32 OR $ascii > 126 OR in_array($char, $convert))
{
$char = '='.dechex($ascii);
}
// handle regular spaces a bit more compactly than =20
if ($ascii == 32)
{
$char = '_';
}
// If we're at the character limit, add the line to the output,
// reset our temp variable, and keep on chuggin'
if ((strlen($temp) + strlen($char)) >= $limit)
{
$output .= $temp.$this->crlf;
$temp = '';
}
// Add the character to our temporary line
$temp .= $char;
}
$str = $output.$temp;
// wrap each line with the shebang, charset, and transfer encoding
// the preceding space on successive lines is required for header "folding"
$str = trim(preg_replace('/^(.*)$/m', ' =?'.$this->charset.'?Q?$1?=', $str));
return $str;
}
哪个输出
=?utf-8?Q?A_user_had_completed_their_task_in_"Going_to_change_string_to_?=
=?utf-8?Q?something"?=
我看到其他人在设置电子邮件配置的方式上有问题。你有吗
$config['crlf'] = "'r'n"; //double quotes ("), not single (')
$config['newline'] = "'r'n"; //double quotes ("), not single (')
设置？