Description of problem:
There is a step missing in the following section.
23.3.2.2. Basic Postfix Configuration

After the line below, there should be an additional line

Existing line
# "Uncomment the inet_interfaces = all line."

Insert this line. 

# "Comment the inet_interfaces = localhost line." 

Existing line

# "Restart the postfix service."


Version-Release number of selected component (if applicable):


How reproducible:
Easy.

Steps to Reproduce:
1. Follow the steps in "23.3.2.2. Basic Postfix Configuration" which a fresh install. 
2. try to connect from a remote host to port 25.

  
Actual results:
The inet_interfaces = localhost line takes precedent of the inet_interfaces = all line. You can not connect to the postfix service remotely.


Expected results:
You should be able to connect to the postfix servce remotely.

Additional info: