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I am trying to set up Gnus (on Emacs 24.5) on Windows to access Gmail through IMAP and it seems like the connection is choking when it attempt to connect to the IMAP server. (Seems like Gnus is not attempting to send authentication data, either.)

It basically hangs while showing "Opening TLS connection to `imap.googlemail.com'...done" and I will have to Ctrl-G to stop it. (I left it for an hour and still didn't work, either.) For both situations where I tried to use gnutls-cli or openssl, it seems to be hanging in exactly the same places, where it seems to be the server is waiting for the client to talk to it, but Gnus never talks to it.

* OK Gimap ready for requests from e203mb4768837ita

I thought it was something to do with .authfile being encrypted, but it seems like Gnus is not even trying to touch it, and didn't work when I tried it with the plain text outfield.

(setq tls-program '("c:/Progra~2/Git/bin/openssl.exe s_client -connect %h:%p -no_ssl2 -ign_eof -CAfile c:/full/path/to/ca-bundle.crt"))

The odd thing is same configuration works on Linux and Mac on the same network, just Windows machine that's having issues.

(setq gnus-secondary-select-methods
  '((nnimap "server"
            (nnimap-address "imap.googlemail.com")
            (nnimap-server-port 993)
            (nnimap-stream ssl)
            (nnimap-authinfo-file "~/.authinfo"))))

If there something I can try to fix this, and/or suggestions/insights will be highly appreciated!

Thank you.

legoscia
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Hideki Saito
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  • I'd suggest trying the native GnuTLS support in Emacs instead of an external TLS program. I [wrote about how to enable that on Windows](http://xn--9dbdkw.se/diary/how_to_enable_GnuTLS_for_Emacs_24_on_Windows/index.en.html). – legoscia Jun 11 '15 at 09:59
  • Yes, looks like this solved the issue. Thank you! – Hideki Saito Jun 11 '15 at 19:39
  • Can you share your setup in detail? I tried in many ways, but none of them was successful. – Leu_Grady Aug 23 '15 at 11:12
  • I've pretty much followed instruction on the parent comment. I didn't actually have to change a single line of lisp I had in my original question. Make sure to use the gnutls from the site mentioned, as some other gnutls distribution seems to be incompatible. – Hideki Saito Sep 17 '15 at 01:53
  • @legoscia perhaps you may be able to help me: I followed the procedure described on your website. However, when I extract gnutls and copy the .DLL files of its bin/ directory to emacs' bin/ directory, the command (gnutls-available-p) is not recognized. I wonder what I may have missed? Thanks for your time. – Blitzkoder Oct 08 '15 at 10:18
  • @mcoimbra If the function `gnutls-available-p` doesn't exist at all, you probably have an old version of Emacs. Emacs 24.1 or later should have that function, regardless of whether it can find the DLL files. – legoscia Oct 08 '15 at 13:47

2 Answers2

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Thanks to comments posted by legoscia, it is functioning!

Mainly, I had to remove tls-program definition.

 (setq tls-program '("c:/Progra~2/Git/bin/openssl.exe s_client -connect %h:%p -no_ssl2 -ign_eof -CAfile c:/full/path/to/ca-bundle.crt"))

And make sure the OpenSSL DLL is present in the same directory as Emacs.

It is also noted that some OpenSSL distribution seems to have different signature, however, the one provided through the link on the article worked.

Hideki Saito
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  • Could you please expand on this post to make it a complete answer by describing what you did to fix the problem? It's good to cite @legoscia's comment and work, but an answer should be self-contained. – Dan Sep 29 '15 at 20:19
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This answer helped me a lot if you want getting Gnus work on Windows. By the way, I prefer mu4e above Gnus.

ReneFroger
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