==== Required information ====
- iRedMail version (check /etc/iredmail-release): 0.9.2
- Linux/BSD distribution name and version: Debian 8
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): Mysql
- Web server (Apache or Nginx): Nginx
- Manage mail accounts with iRedAdmin-Pro? No
- Related log if you're reporting an issue:
====
Hi,
When sending emails, it seems that Return receipt and Delivred status notif don't show/work ...
I don't know from where to start for debugging ?
Is there any special config files to check in ?
Thx