Questions tagged [ssl]

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Failed to download ‘melpa-stable’ archive. GnuTLS : Contacting host: 443

I am trying to install packages/modes from melpa on my emacs27.1, but I am unable to do so. If I run M-x package-refresh-contents , I get the following error : Importing package-keyring.gpg...done ...
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2 votes
0 answers
256 views

Cannot upgrade packages when adding melpa to the package-archives

I have problems upgrading packages coming from melpa: When executing list-package with "https://melpa.org/packages/" in the package-archives I get the following in the *Messages* buffer: ...
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1 answer
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mu4e with second account with a different stream type fails to send messages

I use Emacs and mu4e for email. I successfully set up Amazon WorkMail IMAP with Emacs and mu4e as a second account. My first account works with TLS: (setq ; ... smtpmail-smtp-server &...
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  • 1,489
1 vote
1 answer
841 views

Accessing HTTPS sites with mac emacs 26.3

I'm working on a mac (Catalina 10.15.1) and I've recently switched from Aquamacs to GNU Emacs (updated to 26.3 build 1). In Aquamacs, I had no issues accessing https sites, though I'm unable to do ...
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0 answers
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url-retrieve-synchronously on github doesn't return any response

Running the function (url-retrieve-synchronously "https://api.github.com/users/lawlist/gists") returns an empty buffer. This only happens with github. What could possibly be the cause?
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8 votes
1 answer
2k views

M-x list-package fails with error "certificate could not be verified"

My environment: Linux Mint 17.3 (based on Ubuntu 14.04) Emacs 25.3.1 The value of package-archives: (("gnu" . "https://elpa.gnu.org/packages/") ("melpa" . "https://melpa.org/packages/") ("...
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  • 211
1 vote
1 answer
747 views

gnutls-negotiate: Certificate validation failed for [hostname] verification code 402

After upgrading to Emacs 25, I get gnutls-negotiate: Certificate validation failed for [hostname] verification code 402 on connecting to my weechat IRC proxy, with no prompt about accepting things ...
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  • 1,045
7 votes
1 answer
3k views

Emacs TLS check is still ill-configured

After reading this post I decided to harder the security of Emacs. However, after setting everything and doing the test, Emacs is still ill-configured. Everything is done in a GNU/Linux distribution. ...
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  • 2,564
3 votes
1 answer
890 views

Send email with gnus via ssl port 465

I'm using gnus and trying to send email through it. This works for my gmail account (which receives outgoing emails on smpt port 587 using tls). My university uses smpt on port 465 and no tls, but ssl....
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  • 813
6 votes
2 answers
1k views

How can I use ERC with an IRC offered over SSL?

I'm trying to connect to Gitter's IRC servers to join the chat room vermiculus/stack-mode, but according to Gitter, they offer this service over SSL: _ _ _ _ _ ...
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