Issue with Postfix service stopped after reboot or patch install

Products

• CA API Gateway

Issue/Introduction

The Postfix service is not running [maybe post reboot or post patch installation] which leads to temporary files stacking up in /var/spool/postfix/maildrop directory.

This causes the gateway node filesystem to get filled up.

Environment

API Gateway 11.1

Cause

The postfix service stops after every patch installation.

Resolution

This is a  known issue. After every patch installation, the postfix service stops. The current workaround is to start the postfix service manually.

REF: Gateway 11.1 Known Issues

You also can enable the service to be started on reboot with the following steps 

 systemctl enable --now postfix

You can check the current status of the service with 

 systemctl is-enabled postfix

If this is disabled postfix will not start on a reboot.