==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 1.2.1
- Deployed with iRedMail Easy or the downloadable installer? Download
- Linux/BSD distribution name and version: Debian 9
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): LDAP
- 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.
====

I am trying to do a delete-all on my blacklist using wblist_admin.py. When I type the following it doesn't work.

# ./wblist_admin.py --delete-all --blacklist

I get

* Establishing SQL connection.
* Delete all inbound blacklist for account: @.
'Engine' object has no attribute 'delete'

Am I doing something wrong?