==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 0.9.9
- Deployed with iRedMail Easy or the downloadable installer? Installer
- Linux/BSD distribution name and version: Ubuntu 18.04
- 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.
====

Hello,
From few days in my log I have:

message reject detail
---------------------
  RCPT
    450 4.7.1 Client host rejected: cannot find your reverse hostname, [89.42.31.250]; from=<apache@easy2buy.net> to=<contact@mydomain.com> proto=ESMTP helo=<easy2buy.net> (total: 20)

I added this IP address to the blacklist. When I check blacklist with:

python wblist_admin.py --list --blacklist

I get:
* Establishing SQL connection.
* List all inbound blacklist for account: @.
89.42.31.250

It looks like the IP address is blacklisted.
But I still have the same in the log. Why?