How do we know that SMTP server port is open for BI Scheduler Configuration?

Introduction

Most of time we are struggling to to set up Email server for Oracle BI Scheduler. So This post describes to easily know that the SMTP server which we are trying to configure is open or not. If it open, we could able to setup server and can receive email but if it is blocked, we will get authentication error.

Many email clients and services use port 25 for SMTP to send out emails. However an ISP (Internet Service Provider) may block port 25 in order to prevent spamming by its customers. This article will show you how you can check to see if Port 25 is blocked on your network.

Before we start

Go to command prompt on your computer. If you need help with how to enable telnet in our local windows machine follow the below step to enable telnet in your local machine.

Step1: 

Go to Control Panel -> Programs -> Program and Features -> Select 'Turn windows featues on or off'

 Step2: 
We will be prompted to new windows, From there check 'Telnet Client' and click 'OK'

The configuration might take some minutes. 

Now telnet client is successfully enabled in your local machine to check the SMTP Server.

Instructions

1. Go to the command prompt and Type the following command: 

2. View Results:
   If Port 25 is not blocked, you will get a successful 220 response (text may vary).

If Port 25 is blocked, you will get a connection error or no response at all.

Tip: You can use this same technique to check if Port 587 is blocked as well.  Just use the following command: