Hello,
In our company we log on Zabbix with ADS account from LDAP.
The problem is that each personn have his habits to write his account name.
Sometimes with "ADS_xxxxx.xxxxx" or "Ads_xxxxx.xxxxx" or "ads_xxxxx.xxxxx".
Thanksfuly Active Directory is not case sensitive but sadly Zabbix Login is.
It pose me problem with personn who can't log because one case haven't got the right uppercase or lowercase...

Can you remove the case sensitivity only for login ? Perhaps you can make a tick box in account settings to activate or deactive case sentivity.