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Re: Connecting to IMAP server using libcurl
From: Daniel Stenberg via curl-library <curl-library_at_cool.haxx.se>
Date: Sat, 5 Sep 2020 23:02:24 +0200 (CEST)
Date: Sat, 5 Sep 2020 23:02:24 +0200 (CEST)
On Tue, 1 Sep 2020, Jeffrey McKay via curl-library wrote:
> In my program, I can connect to my test server (outlook.office365.com), and
> if I use port 143, the insecure IMAP port, I can receive the response. But
> if I use secure port 993, the program hangs on the select() command, timing
> out after 60 seconds.
If you want TLS already in the connect procedure, you need to use a URL that
says so. Your code:
strcpy_s(imap_host, "outlook.office365.com");
curl_easy_setopt(curl, CURLOPT_URL, imap_host);
... uses no protocol scheme at all which will make curl guess, and in this
case it thinks it is "http" - in clear text. It won't try to do any TLS
negotiation on a clear text connection.
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Received on 2020-09-05