About
This article will show different server configuration testing in order to validate your email server configuration.
In our case, we had installed Postfix
Technics
Sending an email to Provider
Testing an email configuration is done by sending an email to a provider that will:
- show you if you pass the tests
- eventually score your email.
Mail Tester
The most easy way is to send an email at mail-tester
Gmail
Send an email and check the original email, Gmail will show you if you have passed the test:
Testing locally with netcat
nc mail.example.com 25
EHLO $hostname
250-server01.bytle.net
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN
MAIL FROM:<[email protected]>
RCPT TO:<[email protected]>
DATA
Subject: Test email
Body of the email
.
QUIT