==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 0.9.9
- Deployed with iRedMail Easy or the downloadable installer? Downloadable
- Linux/BSD distribution name and version: CentOS 7.6
- 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.
====
Used: https://docs.iredmail.org/monitor.incom … line-tools

Have users Alpha and Beta. Want Beta to received BBC of emails sent by Alpha.
Tried the two commands below. Both sent BCC to Alpha instead of Beta. Deleted rows in between tests.

INSERT INTO sender_bcc_user (username, bcc_address, domain, active, created) VALUES ('Alpha', 'Beta', '-domain', 1, NOW());

INSERT INTO sender_bcc_user (username, bcc_address, domain, active, created) VALUES ('Beta', 'Alpha, '-domain', 1, NOW());