KnowDB

port

465 (smtps)

See also: software postfix

Port 465 (smtps): SMTPS, email submission over TLS.

Port 465 is open on 5 hosts in your infrastructure, across 4 operating systems.

Operating systems of the hosts listening to this port:

Ubuntu 22: 2 hosts (40%)RHEL 9: 1 host (20%)Ubuntu 24: 1 host (20%)Windows 2016: 1 host (20%)
  1. Ubuntu 222 hosts, 40%
  2. RHEL 91 host, 20%
  3. Ubuntu 241 host, 20%
  4. Windows 20161 host, 20%