Re: The fingerprint for the connection to imap.gmail.com:993 has changed

[Tassilo Horn]

Denis Bitouzé <dbitouze@wanadoo.fr> writes:

> I'm using imap.gmail.com as imap server and, since today, gnus tells me:
>
>   ┌────
>   │ Certificate information
>   │ Issued by:          Google Internet Authority G2
>   │ Issued to:          Google Inc
>   │ Hostname:           imap.gmail.com
>   │ Public key:         RSA, signature: RSA-SHA256
>   │ Protocol:           TLS1.2, key: ECDHE-RSA, cipher: AES-128-GCM, mac: AEAD
>   │ Security level:     Legacy
>   │ Valid:              From 2016-09-29 to 2016-12-22
>   │ 
>   │ 
>   │ The fingerprint for the connection to imap.gmail.com:993 has changed from
>   │ sha1:b7:58:ef:a0:55:ca:f4:ee:61:62:52:b2:89:43:6a:89:bc:51:1c:bc to
>   │ sha1:9c:f5:5a:12:dd:a4:a1:13:42:96:40:9f:dc:59:5a:c9:2c:f4:2c:33
>   └────

I also get that quite often but I'm queried if I want to accept the new
one (either no, yes only this time, or always).  The only setting which
I can find in my ~/.emacs which has something to do with it is

  (setq network-security-level 'high)

but it would seem strange that with the default security level of medium
you were not queried and instead the connection was aborted.

Bye,
Tassilo