Question

我在通过SMTP协议发送邮件时遇到问题。

Welcome.php

$this->load->library('email');

$config = array();
$config['protocol'] = 'smtp';
$config['smtp_host'] = 'smtp.zoho.com';
$config['smtp_user'] = 'support@domain.com';
$config['smtp_pass'] = '**************';
$config['smtp_port'] = 465;
$config["smtp_crypto"] = "ssl";

$this->email->initialize($config);

$this->email->set_newline("\r\n");
$this->email->from('support@domain.com', 'Support name'); // change it to yours
$this->email->to($to);// change it to yours
$this->email->subject($subject);
$this->email->message($message);

    if($this->email->send())
    {
      echo "Success! - An email has been sent to ".$to;
    }
    else
    { 
      show_error($this->email->print_debugger());
      return false;
    }
}

以下是输出错误：

An Error Was Encountered
220 mx.zohomail.com SMTP Server ready June 29, 2018 5:16:40 AM PDT 

hello: 

The following SMTP error was encountered: 
Unable to send email using PHP SMTP. Your server might not be configured to send mail using this method.
Date: Fri, 29 Jun 2018 12:16:40 +0000
From: "Support Name" <support@domain.com>
Return-Path: <support@domain.com>
To: recipent@gmail.com
Subject: =?ISO-8859-1?Q?=43=6F=70=79=20=61=6C=6C=20=74=68=65?=
Reply-To: <support@domain.com>
User-Agent: CodeIgniter
X-Sender: support@domain.com
X-Mailer: CodeIgniter
X-Priority: 3 (Normal)
Message-ID: <5b36232840595@domain.com>
Mime-Version: 1.0

Content-Type: multipart/alternative; boundary="B_ALT_5b3623284061c"

This is a multi-part message in MIME format.
Your email application may not support this format.

--B_ALT_5b3623284061c
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 8bit

Some

--B_ALT_5b3623284061c
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

Some Email Description=0A=0A Some Email Description

--B_ALT_5b3623284061c--

注意：该脚本在localhost以及多个其他主机，但不能在VPS主机上使用。

这些是要记住的事情：

代码很好（在不同的托管环境中尝试过并且可以正常工作）
将$config['protocol'] = "smtp";更改为$config['protocol'] = "sendmail";是可行的。但是我只想通过SMTP协议发送邮件。
使用Zoho Mail SMTP协议（smtp.zoho.com）
已尝试，Google SMTP，仍未发送。（使用PHPMailer库测试了凭据。它正在对其进行处理。）

Answer 1

我希望这段代码能正常工作

$Config = [
  'protocol'  => 'smtp', 
  'smtp_host' => 'smtp.zoho.com', 
  'smtp_port' =>  465, 
  'smtp_user' => 'support@domain.com', 
  'smtp_pass' => '**************', 
  'mailtype'  => 'html', 
  'charset'   => 'utf-8'
];
$this->load->library('email',$config);
$this->email->set_newline("\r\n");
$this->email->from('support@domain.com', 'Support name'); // change it to yours
$this->email->to($to);// change it to yours
$this->email->subject($subject);
$this->email->message($message);
if($this->email->send()){
   echo "Success! - An email has been sent to ".$to;
}
else{ 
   show_error($this->email->print_debugger());
   return false;
}

Answer 2

解决方案： 问题已已修复！罪魁祸首是有效主机名和反向DNS 。

详细信息： 由于配置错误，SMTP在7 - 10 secs附近响应。根据{{3}}，如果我们不指定smtp_timeout，它将采用默认值5 sec。因此，我将smtp_timeout从默认的5 sec更改为10 sec，并且有效。

找出问题所在后，发现SMTP响应速度很慢。没有添加有效的主机名，反向DNS 。因此添加。现在它正在按预期工作。现在，我删除了smtp_timeout字段。现在正在工作。

SMTP邮件未发送-Codeigniter电子邮件库

2 个答案: