In this tutorial yo0u will learn about Installing SSL Certificate (Secure Server Certificate) to secure communication between Postfix SMTP server and mail client such as Outlook or Thunderbird.


Malware is used for a harmful purpose. It can be in your software or hardware. Email and free (don’t confuse with OSS) or pirated software is the most famous way to spread malware. It is inserted in a system w/o user notification. Wikipedia defines Malware as: Malware is software designed to infiltrate or damage a […]


Postfix is free and powerful MTA. You can easily configure Postfix to block spam. You need to add following directives to /etc/postfix/ file: => disable_vrfy_command = yes : Disable the SMTP VRFY command. This stops some techniques used to harvest email addresses. => smtpd_delay_reject = yes : It allows Postfix to log recipient address information […]


Postfix is an open source mail transfer agent (MTA), for the routing and delivery of email. This post examples how to forward an email to another local or remote email user using Postfix MTA.


Q. My sendmail service is running under Linux and whenever I try to telnet it from other LAN IP, it gives connection refuse error. If I connect it from localhost it accept connection. I can only send mail from my server only. How do I force sendmail to accept mail from other hosts/LAN ips? A. […]


If you need to send an email with a text file (or binary file) as attachment using shell script or command prompt in Unix or Linux; try mutt – a terminal-based e-mail client for Unix-like systems.