Unacceptable TLS certificate

[chencho]

Unable to connect to office365 server. Pop up window shows message Unacceptable TLS certificate

Before upgrade to 20.04, I was able to send and receive emails

This could be related to limitation to TLS 1.2 in Focal

Description: Ubuntu Focal Fossa (development branch)
Release: 20.04
evolution-ews:
  Installed: 3.36.1-1
  Candidate: 3.36.1-1
  Version table:
 *** 3.36.1-1 500
        500 http://us.archive.ubuntu.com/ubuntu focal/universe amd64 Packages
        100 /var/lib/dpkg/status
Linux filemon 5.4.0-21-generic #25-Ubuntu SMP Sat Mar 28 13:10:28 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

I run evolution with debug, but not further info reached.

$ EWS_DEBUG=2 evolution

(evolution-alarm-notify:41560): GLib-GIO-WARNING **: 08:08:58.528: Your application did not unregister from D-Bus before destruction. Consider using g_application_run().
< HTTP/1.1 6 Unacceptable TLS certificate
< Soup-Debug-Timestamp: 1586326162
< Soup-Debug: ESoapMessage 0 (0x557bfd6dbf60)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Adrian Baigorri (usua69)]

Same with Online Accounts:
- Google
- Facebook

[Adrian Baigorri (usua69)]

Solved installing
sudo apt install default-jre

[chencho (chenchix)]

Java has nothing to do with the issue.

[bruno alex oliveira de melo (brod-29)]

I have the same problem, but for me, any version of ubuntu this problem happens. Actually I`m using evolution 3.28.5-0ubuntu0.18.04.1, and when I migrated to the 3.26 version, received the same error "Unacceptable TLS certificate"

[Sebastien Bacher (seb128)]

Thank you for your bug report, it's probably an upstream issue, could you report it on https://gitlab.gnome.org/GNOME/evolution-ews/-/issues ?