Topic: OUtlook fails to login after server upgrade from 18.04 to 20.04
==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 1.6.1
- Deployed with iRedMail Easy or the downloadable installer? downloadable and upgraded via upgrade steps until 1.6.1
- Linux/BSD distribution name and version: Ubuntu 20.04
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Web server (Apache or Nginx): Nginx
- Manage mail accounts with iRedAdmin-Pro? No
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====
After upgrading Ubuntu from 18.04 to 20.04 outlook logins fail, but roundcube logins with the same username & password are ok.
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