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Editorial Team
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Asked: 2026-05-13T22:00:16+00:00

I would like to use the net/imap library in ruby behind a authenticated proxy,

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I would like to use the net/imap library in ruby behind a authenticated proxy, I was starting to dig in and I’m wondering if there is a way to do this already or if I need to make my own version of the net/imap library that supports a proxy?

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  1. Editorial Team

    It is possible to tunnel any socket connection through a HTTPS proxy server.

    To do this:

    • open a socket to your proxy server
    • send “CONNECT hostname : portnumber HTTP/1.0\n\r\n\r\n”
    • read from the socket until you see the end of the HTTP headers (2 blank lines)
    • your socket is now connected

    Here is a ruby example of such a tunnel.

    Reasons this will fail:

    • most network admins will only allow CONNECT to port 443
    • proxy server has proxy authentication
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