Ubuntu
gnome-online-accounts package

  1. Bug #1866974
  2. Comment #3

Comment 3 for bug 1866974

Revision history for this message
Panos Asproulis (panos-asproulis) wrote :

This issue is not coming from Evolution itself. It also manifests itself when attempting to create an Exchange account using the Settings -> Online Accounts -> Add an account -> Microsoft Exchange option. In this case, if the mail server returns a small Diffie-Hellman prime (e.g. 1024 bytes) the handshake fails and the error message reported is:

Error Connecting to Microsoft Exchange server:
Code:6 -- Unexpected response from server

I have encountered the same problem in Fedora some time ago and in this case the solution was to modify the system wide security level to legacy by using the following command after installing the crypto-policies package:

update-crypto-policies --set LEGACY

see: https://bugzilla.redhat.com/show_bug.cgi?id=1549242

However, in the case of Ubuntu 20.04 this does not resolve the problem.