postfix

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Block Email Spam By Checking Header and Body in Postfix/SpamAssassin

May 3, 2019 Xiao Guo An (Admin)

In previous articles, we discussed how you can quickly set up your own mail server using iRedMail and  7 effective...

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Set Up Postfix Send-Only SMTP Server for Multiple Domains on Ubuntu 18.04, 16.04, 19.04

A reader asked me: “Hi LinuxBabe! I love your tutorials! I couldn’t find any good tutorial on the web about...

OpenDMARC Postfix Ubuntu

Set Up OpenDMARC with Postfix on Ubuntu to Block Email Spoofing/Spam

In previous articles, we discussed how you can quickly set up your own mail server by using iRedMail or Modoboa, and also several...

Enable SMTPS Port 465 in Postfix SMTP Server

Enable SMTPS Port 465 in Postfix SMTP Server For Email Submission

In previous articles, we discussed how you can quickly set up your own mail server by using iRedMail or Modoboa,...

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How to Set Up SMTP Relay Between 2 Postfix SMTP Servers on Ubuntu

Previously we discussed setting up Postfix SMTP relay with mailjet, which is useful when you have to use a commercial...

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How to Set up a Backup Email Server with Postfix on Ubuntu (Complete Guide)

This tutorial will be showing you how to set up a backup email server with Postfix on Ubuntu. A backup...

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How to Set up Postfix SMTP Relay with Mailjet

This tutorial is going to show you how to set up Postfix SMTP relay with Mailjet. Postfix is a popular...

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7 Effective Tips for Blocking Email Spam with Postfix SMTP Server

In this tutorial, I’d like to share with you my 7 tips for blocking email spam with Postfix SMTP server....

spamassassin

How to Block Spam Email with Apache SpamAssassin on Ubuntu 16.04

Apache SpamAssassin is an open source enterprise-class spam filter that can be used by mail server admins to block spam,...

build your own secure email server with postfix

Part 2: How to Install Dovecot IMAP server on Ubuntu and Enable TLS Encryption

This is part 2 of building your own secure email server on Ubuntu tutorial series. In part 1, we showed...

build your own secure email server with postfix

Build Your Own Email Server on Ubuntu: Basic Postfix Setup

Why build your own email server? Have you heard that Hillary Clinton uses her private email server? Hillary used it...

550 Mail Content Denied

How To Solve 550 Mail Content Denied Error

If you are running your own mail server and send emails to your mailing list, you may have encountered “550...