No email sent after enabling email notifications

Products

• VMware Tanzu Greenplum

Issue/Introduction

No email is sent after enabling email alerts on Greenplum and testing.

There are no error messages and no confirmation that the email was sent.

Cause

This is caused when the SNMP server does not refuse the request but has a policy in place to disallow an email to be sent.

Resolution

This is issue with the environment and is solved by fixing the SNMP or email server.

A good way to verify if the connection and configuration of the SNMP server are correct is to test with Telnet. With Telnet, you can also test the email facility using the following:

telnet 'SNMP server ip address' 25
ehlo domain.name 
mail from:[e-mail]
rcpt to:[e-mail] 
data 
This is a test, please do not respond 
. 
quit
# Please note this dot before quit is important to finish the data section.