英文:
Sending a mail with net/smtp through http CONNECT proxy
问题
我的Go程序使用net/smtp库发送邮件。
client, err := smtp.Dial(addr)
当连接到SMTP服务器时，我想通过基于HTTP CONNECT的代理进行传递。
英文:
My Go program sends a mail with the net/smtp library.
client, err := smtp.Dial(addr)
When connecting to the SMTP server I would like to pass through a HTTP CONNECT-based proxy.
答案1
得分: 1
要通过CONNECT代理发送SMTP流量，您需要使用smtp.NewClient(conn net.Conn, host string)并提供一个现有连接（net.Conn）到您的CONNECT代理。
magisterquis/connectproxy包很可能是您需要创建此连接的工具：
d, err := connectproxy.New("https://proxyserver:4433", proxy.Direct)
if nil != err{
panic(err)
}
c, err := d.Dial("tcp", "upstream.mail.server:25")
if nil != err {
panic(err)
}
smtpClient, err := smtp.NewClient(c, "upstream.mail.server")
if nil != err {
panic(err)
}
英文:
To send SMTP traffic via a CONNECT proxy, you'll need to make use of smtp.NewClient(conn net.Conn, host string) with an existing connection (net.Conn) to your CONNECT proxy.
The magisterquis/connectproxy package is most likely be what you will need to create this connection:
d, err := connectproxy.New("https://proxyserver:4433", proxy.Direct)
if nil != err{
panic(err)
}
c, err := d.Dial("tcp", "upstream.mail.server:25")
if nil != err {
panic(err)
}
smtpClient, err := smtp.NewClient(c, "upstream.mail.server")
if nil != err {
panic(err)
}
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