[Bug 1876790] Re: cannot connect to the mail server

[Dimitri John Ledkov]

Hi,

After inspecting imap4.orangemail.sk host, it appears to only support
TLS1.0 and does not support TLS1.1 or TLS1.2 which have been release
more than 12 years ago and widely adopted. It only supports TLS1.0 which
has been deprecated this year and is no longer supported by default as
it is weak and insecure.

Please contact orangemail.sk requesting for them to support TLSv1.2.

The problem is with them, not Ubuntu. Ubuntu is trying to protect your
communication to be secure.

If you wish to downgrade security and allow broken cryptography you can
use the following documentation to allow connecting to said host in an
insecure manner that is easier to hack https://discourse.ubuntu.com/t
/default-to-tls-v1-2-in-all-tls-libraries-in-20-04-lts/12464/8?u=xnox

** Changed in: openssl (Ubuntu)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1876790

Title:
  cannot connect to the mail server

Status in openssl package in Ubuntu:
  Invalid

Bug description:
  Hi, 
     After upgrade lubuntu on 20.04 both email clients Trojita and Sylpheed cannot connect to the mail server. from the log: 
  creating IMAP4 connection to imap4.orangemail.sk:993 ...
  ** LibSylph-WARNING: SSL_connect() failed with error 1, ret = -1 (error:1425F102:SSL routines:ssl_choose_client_version:unsupported protocol)

  problem with ssl?
  OpenSSL 1.1.1f  31 Mar 2020

  I try:
  openssl s_client -host imap4.orangemail.sk -port 993 -prexit 
  CONNECTED(00000003)
  140518603695424:error:1425F102:SSL routines:ssl_choose_client_version:unsupported protocol:../ssl/statem/statem_lib.c:1941:
  ......

  lsb_release -rd
  Description:    Ubuntu 20.04 LTS
  Release:        20.04

  By

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