==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 1.3.2 MARIADB edition.
- Deployed with iRedMail Easy or the downloadable installer? downlodable
- Linux/BSD distribution name and version: Debian 10
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Web server (Apache or Nginx): Apache
- Manage mail accounts with iRedAdmin-Pro? Yes
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====

Hello,

i have a huge problem with Sogo and Caldav. I've imported 1000+ contacts for a customer and when I sync with an iPad and an iPhone, multiple contacts are duplicated, several times. So i have almost 5000 contacts in the customer account.
I tought it was a bug with caldav sync for outlook, but even if I desactivate the sync "two ways" and set only "duplicate" from server, some entries are duplicated. So my conclusion is there is a problem with caldav server (i don't know if i am clear )

If you have an idea ...