Mandrill smtp故障

Question

我很难让mandrill可靠地发送。或者更准确地说，每次都要进行身份验证。当它进行身份验证时，电子邮件可以正常工作

我可以很好地运行send脚本，然后一个接一个地连续运行2到3次。那么它就不会通过身份验证。但在某些情况下，它不能立即进行身份验证。

我想可能只是因为它认为我滥用它，并在很短的一段时间内屏蔽了我。

但我可以看到，自从我开始在我的网站上使用mandrill以来，它的身份验证失败率是正常的。

已尝试域上的SPF和dmik文本属性。这没什么用

环顾四周，我看不到其他人有这个问题，但在这种速度下，我肯定不能使用SMTP的mandrill。

有人能提出为什么会发生这种情况的原因吗？我的证书是100%准确的，我想我根本没有发送太多的电子邮件。

在使用另一个mandrill帐户的另一台服务器上遇到同样的问题。

注意:我使用的是phpmailer

调试错误示例：

2014-12-06 08:52:59 Connection: opening to smtp.mandrillapp.com:587, t=300, opt=array (
)
2014-12-06 08:52:59 Connection: opened
2014-12-06 08:52:59 SERVER -> CLIENT: 220 smtp.mandrillapp.com ESMTP
2014-12-06 08:52:59 CLIENT -> SERVER: EHLO fakemail.com
2014-12-06 08:52:59 SERVER -> CLIENT: 250-ip-10-243-6-11
250-PIPELINING
250-SIZE 26214400
250-STARTTLS
250-AUTH PLAIN LOGIN
250-ENHANCEDSTATUSCODES
250 8BITMIME
2014-12-06 08:52:59 CLIENT -> SERVER: AUTH LOGIN
2014-12-06 08:52:59 SERVER -> CLIENT: 334 VXNlcm5hbWU6
2014-12-06 08:52:59 CLIENT -> SERVER: bWVAZG91Z25vcmZvbGsuY29tLmF1
2014-12-06 08:52:59 SERVER -> CLIENT: 334 UGFzc3dvcmQ6
2014-12-06 08:52:59 CLIENT -> SERVER: REDACTED
2014-12-06 08:53:01 SERVER -> CLIENT: 435 4.7.8 Error: authentication failed: UGFzc3dvcmQ6
2014-12-06 08:53:01 SMTP ERROR: Password command failed: 435 4.7.8 Error: authentication failed: UGFzc3dvcmQ6
2014-12-06 08:53:01 CLIENT -> SERVER: QUIT
2014-12-06 08:53:01 SERVER -> CLIENT: 221 2.0.0 Bye
2014-12-06 08:53:01 Connection: closed
2014-12-06 08:53:01 SMTP connect() failed.
Mailer Error: SMTP connect() failed.

示例正确发送：

2014-12-06 08:52:33 Connection: opening to smtp.mandrillapp.com:587, t=300, opt=array (
)
2014-12-06 08:52:33 Connection: opened
2014-12-06 08:52:33 SERVER -> CLIENT: 220 smtp.mandrillapp.com ESMTP
2014-12-06 08:52:33 CLIENT -> SERVER: EHLO fakemail.com
2014-12-06 08:52:33 SERVER -> CLIENT: 250-ip-10-250-28-124
250-PIPELINING
250-SIZE 26214400
250-STARTTLS
250-AUTH PLAIN LOGIN
250-ENHANCEDSTATUSCODES
250 8BITMIME
2014-12-06 08:52:33 CLIENT -> SERVER: AUTH LOGIN
2014-12-06 08:52:33 SERVER -> CLIENT: 334 VXNlcm5hbWU6
2014-12-06 08:52:33 CLIENT -> SERVER: bWVAZG91Z25vcmZvbGsuY29tLmF1
2014-12-06 08:52:33 SERVER -> CLIENT: 334 UGFzc3dvcmQ6
2014-12-06 08:52:33 CLIENT -> SERVER: REDACTED
2014-12-06 08:52:33 SERVER -> CLIENT: 235 2.7.0 Authentication successful
2014-12-06 08:52:33 CLIENT -> SERVER: MAIL FROM:<me@fakemail.com>
2014-12-06 08:52:33 SERVER -> CLIENT: 250 2.1.0 Ok
2014-12-06 08:52:33 CLIENT -> SERVER: RCPT TO:<me@fakemail.com>
2014-12-06 08:52:33 SERVER -> CLIENT: 250 2.1.5 Ok
2014-12-06 08:52:33 CLIENT -> SERVER: DATA
2014-12-06 08:52:33 SERVER -> CLIENT: 354 End data with <CR><LF>.<CR><LF>
2014-12-06 08:52:33 CLIENT -> SERVER: Date: Sat, 6 Dec 2014 19:52:33 +1100
2014-12-06 08:52:33 CLIENT -> SERVER: To: Test <me@fakemail.com>
2014-12-06 08:52:33 CLIENT -> SERVER: From: Test <me@fakemail.com>
2014-12-06 08:52:33 CLIENT -> SERVER: Subject: Here is the subject
2014-12-06 08:52:33 CLIENT -> SERVER: Message-ID: <0a8f3c40575be98668d8ea6fb03f4bfc@fakemail.com>
2014-12-06 08:52:33 CLIENT -> SERVER: X-Priority: 3
2014-12-06 08:52:33 CLIENT -> SERVER: X-Mailer: PHPMailer 5.2.9 (https://github.com/PHPMailer/PHPMailer/)
2014-12-06 08:52:33 CLIENT -> SERVER: MIME-Version: 1.0
2014-12-06 08:52:33 CLIENT -> SERVER: Content-Type: multipart/alternative;
2014-12-06 08:52:33 CLIENT -> SERVER:   boundary="b1_0a8f3c40575be98668d8ea6fb03f4bfc"
2014-12-06 08:52:33 CLIENT -> SERVER: Content-Transfer-Encoding: 8bit
2014-12-06 08:52:33 CLIENT -> SERVER:
2014-12-06 08:52:33 CLIENT -> SERVER: --b1_0a8f3c40575be98668d8ea6fb03f4bfc
2014-12-06 08:52:33 CLIENT -> SERVER: Content-Type: text/plain; charset=us-ascii
2014-12-06 08:52:33 CLIENT -> SERVER:
2014-12-06 08:52:33 CLIENT -> SERVER: This is the body in plain text for non-HTML mail clients
2014-12-06 08:52:33 CLIENT -> SERVER:
2014-12-06 08:52:33 CLIENT -> SERVER:
2014-12-06 08:52:33 CLIENT -> SERVER: --b1_0a8f3c40575be98668d8ea6fb03f4bfc
2014-12-06 08:52:33 CLIENT -> SERVER: Content-Type: text/html; charset=us-ascii
2014-12-06 08:52:33 CLIENT -> SERVER:
2014-12-06 08:52:33 CLIENT -> SERVER: This is the HTML message body <strong>in bold!</strong>
2014-12-06 08:52:33 CLIENT -> SERVER:
2014-12-06 08:52:33 CLIENT -> SERVER:
2014-12-06 08:52:33 CLIENT -> SERVER:
2014-12-06 08:52:33 CLIENT -> SERVER: --b1_0a8f3c40575be98668d8ea6fb03f4bfc--
2014-12-06 08:52:33 CLIENT -> SERVER:
2014-12-06 08:52:33 CLIENT -> SERVER: .
2014-12-06 08:52:33 SERVER -> CLIENT: 250 2.0.0 Ok: queued as 109BC180070
2014-12-06 08:52:33 CLIENT -> SERVER: QUIT
2014-12-06 08:52:33 SERVER -> CLIENT: 221 2.0.0 Bye
2014-12-06 08:52:33 Connection: closed
Message sent!

我试着每5秒发一次邮件。10次中有3次没有发送。

1分钟后，我每10秒尝试一次。10个人中有8个没有发送。

Answer 1

因为它是间歇性的，所以在他们的末端看起来肯定是一个问题。设置SMTPDebug = 3以查看整个SMTP会话。

从您给出的片面观点来看，您似乎没有使用TLS，而且在启动TLS之前不允许身份验证是很常见的，尽管我可以看到服务器说它会这么做。我认为在没有TLS的情况下允许auth是一个安全缺陷，当然不是你需要允许的东西。

还要确保您使用的是最新的PHPMailer (5.2.9+)。