Question

我的方法非常简单，基于几个不同的在线资源。我使用这个命令装甲我的用户名和密码：

perl -MMIME::Base64 -e 'print encode_base64("\000user@example.com\000password")'

以下是连接结果的转储：

~$ openssl s_client -connect smtp.koumbit.net:587 -starttls smtp
CONNECTED(00000003)
depth=1 C = US, O = "GeoTrust, Inc.", CN = RapidSSL CA
verify error:num=20:unable to get local issuer certificate
verify return:0
---
SNIP Certificate info
---
250 DSN
ehlo riot-nrrd.info
250-bureau.koumbit.net
250-PIPELINING
250-SIZE 20480000
250-ETRN
250-AUTH LOGIN PLAIN
250-AUTH=LOGIN PLAIN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN
auth plain <paste of base64 encoded output here>
535 5.7.8 Error: authentication failed: authentication failure
quit
221 2.0.0 Bye
closed

我知道我使用的用户名和密码是正确的，因为我的电子邮件客户端正在使用它们。我对smtp或openssl并不十分熟悉。特别是，我不清楚通过EHLO提供的主机名是否具有任何意义......

我（盲目地）尝试的事情：

根据openssl client SMTP with gmail port 587, no response (250 OK) from after <crlf>.<crlf>

-crlf

Answer 1

对于调试SMTP个事务，您可以使用swaks工具。请在下面找到示例输出。

[clement@myhost ~]$ swaks --from you@gmail.com --to someone@yahoo.com --auth-user you@gmail.com --auth-pass "your_pass" -tls --server smtp.gmail.com --port 587
=== Trying smtp.gmail.com:587...
=== Connected to smtp.gmail.com.
<-  220 mx.google.com ESMTP sy1sm38890738pab.30 - gsmtp
 -> EHLO myhost
<-  250-mx.google.com at your service, [223.233.234.250]
<-  250-SIZE 35882577
<-  250-8BITMIME
<-  250-STARTTLS
<-  250-ENHANCEDSTATUSCODES
<-  250 CHUNKING
 -> STARTTLS
<-  220 2.0.0 Ready to start TLS
=== TLS started w/ cipher ECDHE-RSA-AES128-GCM-SHA256
=== TLS peer subject DN="/C=US/ST=California/L=Mountain View/O=Google Inc/CN=smtp.gmail.com"
 ~> EHLO myhost
<~  250-mx.google.com at your service, [223.233.234.250]
<~  250-SIZE 35882577
<~  250-8BITMIME
<~  250-AUTH LOGIN PLAIN XOAUTH XOAUTH2 PLAIN-CLIENTTOKEN
<~  250-ENHANCEDSTATUSCODES
<~  250 CHUNKING
 ~> AUTH LOGIN
<~  334 VXNlcm5hbWU6
 ~> <Your_base64_encoded_username>
<~  334 UGFzc3dvcmQ6
 ~> <your_base64_encoded_password>
<~  235 2.7.0 Accepted
 ~> MAIL FROM:<you@gmail.com>
<~  250 2.1.0 OK sy1sm38890738pab.30 - gsmtp
 ~> RCPT TO:<someone@yahoo.com>
<~  250 2.1.5 OK sy1sm38890738pab.30 - gsmtp
 ~> DATA
<~  354  Go ahead sy1sm38890738pab.30 - gsmtp
 ~> Date: Fri, 11 Apr 2014 23:22:50 +0530
 ~> To: someone@yahoo.com
 ~> From: you@gmail.com
 ~> Subject: test Fri, 11 Apr 2014 23:22:50 +0530
 ~> X-Mailer: swaks v20120320.0 jetmore.org/john/code/swaks/
 ~> 
 ~> This is a test mailing
 ~> 
 ~> .
<~  250 2.0.0 OK 1397238779 sy1sm38890738pab.30 - gsmtp
 ~> QUIT
<~  221 2.0.0 closing connection sy1sm38890738pab.30 - gsmtp
=== Connection closed with remote host.

有关该工具的更多信息here

通过openssl连接到smtp服务器的身份验证错误

1 个答案: