KnowDB

port

25 (smtp)

See also: postfix (software)

Port 25 (smtp): SMTP, sending email between mail servers.

Port 25 is open on 10 hosts in your infrastructure, across 6 operating systems.

Read more: "Simple Mail Transfer Protocol" on Wikipedia, rfc-editor.org/rfc/rfc5321

The hosts listening to this port run on these cloud providers:

None: 6 hosts (60%)AWS: 3 hosts (30%)GCP: 1 host (10%)
  1. None6 hosts, 60%
  2. AWS3 hosts, 30%
  3. GCP1 host, 10%