==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release):  1.3.2
- Deployed with iRedMail Easy or the downloadable installer?  downloadable
- Linux/BSD distribution name and version:   CentOS 8
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):  MySQL - MariaDB
- Web server (Apache or Nginx):  Nginx
- Manage mail accounts with iRedAdmin-Pro?  no
====

Hi, I'm running tests for a future upgrade to CentOS 8. In CentOS 7, this document saved me https://docs.iredmail.org/enable.smtps.html
but now it seems not to be working in iRedMail 1.3.2, where SSLv2 and SSLv3 are disabled by design.

Any chance to whitelist a specific host identified by static IP or identified by hostname, to bypass TLS protocol authentication?

I know it's obsolete, deprecated, insecure and dangerous, but I have an old industrial pc that needs to send alerts by mail and the better I can set up is port 465 over SSL.
Thanks.