Question

到目前为止，我的代码如下：

from socket import *
import ssl
msg = "\r\n smtp..."
endmsg = "\r\n.\r\n"

# Choose a mail server (e.g. Google mail server) and call it mailserver
mailserver = ("smtp.gmail.com", 587)

# Create socket called clientSocket and establish a TCP connection with mailserver over SSL
clientSocket = socket(AF_INET, SOCK_STREAM);
clientSocket = ssl.wrap_socket(clientSocket, ssl_version=ssl.PROTOCOL_SSLv23)
clientSocket.connect(mailserver)

#Print server response
recv = clientSocket.recv(1024)
print recv
if recv[:3] != '220':
print '220 reply not received from server.'

我收到错误消息ssl.SSLERrror：[Errno 1] _ssl.c：504：错误：140770FC：SSL例程：SSL23_GET_SERVER_HELLO：尝试运行此脚本时的未知协议。在其他时候，我收到有关服务器没有及时响应的错误。

有没有人知道我做错了什么？（是的，我知道我可以使用smtplib处理smtp服务器，但这是一个练习）

Answer 1

端口587未加密。

telnet smtp.gmail.com 587

Trying 74.125.142.109...
Connected to gmail-smtp-msa.l.google.com.
Escape character is '^]'.
220 mx.google.com ESMTP aa4sm9457625igc.15
helo test.com
250 mx.google.com at your service

如何在Python中使用ssl上的套接字连接到gmail

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